Resolve conflicts in locale

38 files changed, 3101 insertions, 1590 deletions

diff --git a/cli/onionshare_cli/__init__.py b/cli/onionshare_cli/__init__.py
index 4041c5ea..4155a32a 100644
--- a/cli/onionshare_cli/__init__.py
+++ b/cli/onionshare_cli/__init__.py
@@ -27,13 +27,10 @@ from datetime import datetime
 from datetime import timedelta
 
 from .common import Common, CannotFindTor
+from .censorship import CensorshipCircumvention
+from .meek import Meek, MeekNotRunning
 from .web import Web
-from .onion import (
-    TorErrorProtocolError,
-    TorTooOldEphemeral,
-    TorTooOldStealth,
-    Onion,
-)
+from .onion import TorErrorProtocolError, TorTooOldEphemeral, TorTooOldStealth, Onion
 from .onionshare import OnionShare
 from .mode_settings import ModeSettings
 
@@ -94,12 +91,7 @@ def main(cwd=None):
         help="Filename of persistent session",
     )
     # General args
-    parser.add_argument(
-        "--title",
-        metavar="TITLE",
-        default=None,
-        help="Set a title",
-    )
+    parser.add_argument("--title", metavar="TITLE", default=None, help="Set a title")
     parser.add_argument(
         "--public",
         action="store_true",
@@ -308,6 +300,20 @@ def main(cwd=None):
     # Create the Web object
     web = Web(common, False, mode_settings, mode)
 
+    # Create the Meek object and start the meek client
+    # meek = Meek(common)
+    # meek.start()
+
+    # Create the CensorshipCircumvention object to make
+    # API calls to Tor over Meek
+    censorship = CensorshipCircumvention(common, meek)
+    # Example: request recommended bridges, pretending to be from China, using
+    # domain fronting.
+    # censorship_recommended_settings = censorship.request_settings(country="cn")
+    # print(censorship_recommended_settings)
+    # Clean up the meek subprocess once we're done working with the censorship circumvention API
+    # meek.cleanup()
+
     # Start the Onion object
     try:
         onion = Onion(common, use_tmp_dir=True)
@@ -424,7 +430,7 @@ def main(cwd=None):
             sys.exit(1)
 
         # Warn about sending large files over Tor
-        if web.share_mode.download_filesize >= 157286400:  # 150mb
+        if web.share_mode.download_filesize >= 157_286_400:  # 150mb
             print("")
             print("Warning: Sending a large share could take hours")
             print("")
diff --git a/cli/onionshare_cli/censorship.py b/cli/onionshare_cli/censorship.py
new file mode 100644
index 00000000..f84b1058
--- /dev/null
+++ b/cli/onionshare_cli/censorship.py
@@ -0,0 +1,169 @@
+# -*- coding: utf-8 -*-
+"""
+OnionShare | https://onionshare.org/
+
+Copyright (C) 2014-2021 Micah Lee, et al. <micah@micahflee.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+import requests
+
+from .meek import MeekNotRunning
+
+
+class CensorshipCircumvention(object):
+    """
+    Connect to the Tor Moat APIs to retrieve censorship
+    circumvention recommendations, over the Meek client.
+    """
+
+    def __init__(self, common, meek, domain_fronting=True):
+        """
+        Set up the CensorshipCircumvention object to hold
+        common and meek objects.
+        """
+        self.common = common
+        self.meek = meek
+        self.common.log("CensorshipCircumvention", "__init__")
+
+        # Bail out if we requested domain fronting but we can't use meek
+        if domain_fronting and not self.meek.meek_proxies:
+            raise MeekNotRunning()
+
+    def request_map(self, country=False):
+        """
+        Retrieves the Circumvention map from Tor Project and store it
+        locally for further look-ups if required.
+
+        Optionally pass a country code in order to get recommended settings
+        just for that country.
+
+        Note that this API endpoint doesn't return actual bridges,
+        it just returns the recommended bridge type countries.
+        """
+        endpoint = "https://bridges.torproject.org/moat/circumvention/map"
+        data = {}
+        if country:
+            data = {"country": country}
+
+        r = requests.post(
+            endpoint,
+            json=data,
+            headers={"Content-Type": "application/vnd.api+json"},
+            proxies=self.meek.meek_proxies,
+        )
+        if r.status_code != 200:
+            self.common.log(
+                "CensorshipCircumvention",
+                "censorship_obtain_map",
+                f"status_code={r.status_code}",
+            )
+            return False
+
+        result = r.json()
+
+        if "errors" in result:
+            self.common.log(
+                "CensorshipCircumvention",
+                "censorship_obtain_map",
+                f"errors={result['errors']}",
+            )
+            return False
+
+        return result
+
+    def request_settings(self, country=False, transports=False):
+        """
+        Retrieves the Circumvention Settings from Tor Project, which
+        will return recommended settings based on the country code of
+        the requesting IP.
+
+        Optionally, a country code can be specified in order to override
+        the IP detection.
+
+        Optionally, a list of transports can be specified in order to
+        return recommended settings for just that transport type.
+        """
+        endpoint = "https://bridges.torproject.org/moat/circumvention/settings"
+        data = {}
+        if country:
+            data = {"country": country}
+        if transports:
+            data.append({"transports": transports})
+        r = requests.post(
+            endpoint,
+            json=data,
+            headers={"Content-Type": "application/vnd.api+json"},
+            proxies=self.meek.meek_proxies,
+        )
+        if r.status_code != 200:
+            self.common.log(
+                "CensorshipCircumvention",
+                "censorship_obtain_settings",
+                f"status_code={r.status_code}",
+            )
+            return False
+
+        result = r.json()
+
+        if "errors" in result:
+            self.common.log(
+                "CensorshipCircumvention",
+                "censorship_obtain_settings",
+                f"errors={result['errors']}",
+            )
+            return False
+
+        # There are no settings - perhaps this country doesn't require censorship circumvention?
+        # This is not really an error, so we can just check if False and assume direct Tor
+        # connection will work.
+        if not "settings" in result:
+            self.common.log(
+                "CensorshipCircumvention",
+                "censorship_obtain_settings",
+                "No settings found for this country",
+            )
+            return False
+
+        return result
+
+    def request_builtin_bridges(self):
+        """
+        Retrieves the list of built-in bridges from the Tor Project.
+        """
+        endpoint = "https://bridges.torproject.org/moat/circumvention/builtin"
+        r = requests.post(
+            endpoint,
+            headers={"Content-Type": "application/vnd.api+json"},
+            proxies=self.meek.meek_proxies,
+        )
+        if r.status_code != 200:
+            self.common.log(
+                "CensorshipCircumvention",
+                "censorship_obtain_builtin_bridges",
+                f"status_code={r.status_code}",
+            )
+            return False
+
+        result = r.json()
+
+        if "errors" in result:
+            self.common.log(
+                "CensorshipCircumvention",
+                "censorship_obtain_builtin_bridges",
+                f"errors={result['errors']}",
+            )
+            return False
+
+        return result
diff --git a/cli/onionshare_cli/common.py b/cli/onionshare_cli/common.py
index dd92eb0b..bab3fd86 100644
--- a/cli/onionshare_cli/common.py
+++ b/cli/onionshare_cli/common.py
@@ -22,6 +22,7 @@ import hashlib
 import os
 import platform
 import random
+import requests
 import socket
 import sys
 import threading
@@ -313,6 +314,8 @@ class Common:
             if not tor_path:
                 raise CannotFindTor()
             obfs4proxy_file_path = shutil.which("obfs4proxy")
+            snowflake_file_path = shutil.which("snowflake-client")
+            meek_client_file_path = shutil.which("meek-client")
             prefix = os.path.dirname(os.path.dirname(tor_path))
             tor_geo_ip_file_path = os.path.join(prefix, "share/tor/geoip")
             tor_geo_ipv6_file_path = os.path.join(prefix, "share/tor/geoip6")
@@ -320,6 +323,8 @@ class Common:
             base_path = self.get_resource_path("tor")
             tor_path = os.path.join(base_path, "Tor", "tor.exe")
             obfs4proxy_file_path = os.path.join(base_path, "Tor", "obfs4proxy.exe")
+            snowflake_file_path = os.path.join(base_path, "Tor", "snowflake-client.exe")
+            meek_client_file_path = os.path.join(base_path, "Tor", "meek-client.exe")
             tor_geo_ip_file_path = os.path.join(base_path, "Data", "Tor", "geoip")
             tor_geo_ipv6_file_path = os.path.join(base_path, "Data", "Tor", "geoip6")
         elif self.platform == "Darwin":
@@ -327,6 +332,8 @@ class Common:
             if not tor_path:
                 raise CannotFindTor()
             obfs4proxy_file_path = shutil.which("obfs4proxy")
+            snowflake_file_path = shutil.which("snowflake-client")
+            meek_client_file_path = shutil.which("meek-client")
             prefix = os.path.dirname(os.path.dirname(tor_path))
             tor_geo_ip_file_path = os.path.join(prefix, "share/tor/geoip")
             tor_geo_ipv6_file_path = os.path.join(prefix, "share/tor/geoip6")
@@ -335,12 +342,16 @@ class Common:
             tor_geo_ip_file_path = "/usr/local/share/tor/geoip"
             tor_geo_ipv6_file_path = "/usr/local/share/tor/geoip6"
             obfs4proxy_file_path = "/usr/local/bin/obfs4proxy"
+            snowflake_file_path = "/usr/local/bin/snowflake-client"
+            meek_client_file_path = "/usr/local/bin/meek-client"
 
         return (
             tor_path,
             tor_geo_ip_file_path,
             tor_geo_ipv6_file_path,
             obfs4proxy_file_path,
+            snowflake_file_path,
+            meek_client_file_path,
         )
 
     def build_data_dir(self):
diff --git a/cli/onionshare_cli/meek.py b/cli/onionshare_cli/meek.py
new file mode 100644
index 00000000..c5df7b7f
--- /dev/null
+++ b/cli/onionshare_cli/meek.py
@@ -0,0 +1,210 @@
+# -*- coding: utf-8 -*-
+"""
+OnionShare | https://onionshare.org/
+
+Copyright (C) 2014-2021 Micah Lee, et al. <micah@micahflee.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+import os
+import subprocess
+import time
+from queue import Queue, Empty
+from threading import Thread
+
+
+class Meek(object):
+    """
+    The Meek object starts the meek-client as a subprocess.
+    This process is used to do domain-fronting to connect to
+    the Tor APIs for censorship circumvention and retrieving
+    bridges, before connecting to Tor.
+    """
+
+    def __init__(self, common, get_tor_paths=None):
+        """
+        Set up the Meek object
+        """
+
+        self.common = common
+        self.common.log("Meek", "__init__")
+
+        # Set the path of the meek binary
+        if not get_tor_paths:
+            get_tor_paths = self.common.get_tor_paths
+        (
+            self.tor_path,
+            self.tor_geo_ip_file_path,
+            self.tor_geo_ipv6_file_path,
+            self.obfs4proxy_file_path,
+            self.snowflake_file_path,
+            self.meek_client_file_path,
+        ) = get_tor_paths()
+
+        self.meek_proxies = {}
+        self.meek_url = "https://moat.torproject.org.global.prod.fastly.net/"
+        self.meek_front = "cdn.sstatic.net"
+        self.meek_env = {
+            "TOR_PT_MANAGED_TRANSPORT_VER": "1",
+            "TOR_PT_CLIENT_TRANSPORTS": "meek",
+        }
+        self.meek_host = "127.0.0.1"
+        self.meek_port = None
+
+    def start(self):
+        """
+        Start the Meek Client and populate the SOCKS proxies dict
+        for use with requests to the Tor Moat API.
+        """
+        # Small method to read stdout from the subprocess.
+        # We use this to obtain the random port that Meek
+        # started on
+        def enqueue_output(out, queue):
+            for line in iter(out.readline, b""):
+                queue.put(line)
+            out.close()
+
+        # Abort early if we can't find the Meek client
+        if self.meek_client_file_path is None or not os.path.exists(
+            self.meek_client_file_path
+        ):
+            raise MeekNotFound()
+
+        # Start the Meek Client as a subprocess.
+        self.common.log("Meek", "start", "Starting meek client")
+
+        if self.common.platform == "Windows":
+            env = os.environ.copy()
+            for key in self.meek_env:
+                env[key] = self.meek_env[key]
+
+            # In Windows, hide console window when opening meek-client.exe subprocess
+            startupinfo = subprocess.STARTUPINFO()
+            startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+            self.meek_proc = subprocess.Popen(
+                [
+                    self.meek_client_file_path,
+                    "--url",
+                    self.meek_url,
+                    "--front",
+                    self.meek_front,
+                ],
+                stdout=subprocess.PIPE,
+                stderr=subprocess.PIPE,
+                startupinfo=startupinfo,
+                bufsize=1,
+                env=env,
+                text=True,
+            )
+        else:
+            self.meek_proc = subprocess.Popen(
+                [
+                    self.meek_client_file_path,
+                    "--url",
+                    self.meek_url,
+                    "--front",
+                    self.meek_front,
+                ],
+                stdout=subprocess.PIPE,
+                stderr=subprocess.PIPE,
+                bufsize=1,
+                env=self.meek_env,
+                text=True,
+            )
+
+        # Queue up the stdout from the subprocess for polling later
+        q = Queue()
+        t = Thread(target=enqueue_output, args=(self.meek_proc.stdout, q))
+        t.daemon = True  # thread dies with the program
+        t.start()
+
+        while True:
+            # read stdout without blocking
+            try:
+                line = q.get_nowait()
+                self.common.log("Meek", "start", line.strip())
+            except Empty:
+                # no stdout yet?
+                pass
+            else:  # we got stdout
+                if "CMETHOD meek socks5" in line:
+                    self.meek_host = line.split(" ")[3].split(":")[0]
+                    self.meek_port = line.split(" ")[3].split(":")[1]
+                    self.common.log(
+                        "Meek",
+                        "start",
+                        f"Meek running on {self.meek_host}:{self.meek_port}",
+                    )
+                    break
+
+                if "CMETHOD-ERROR" in line:
+                    self.cleanup()
+                    raise MeekNotRunning()
+
+        if self.meek_port:
+            self.meek_proxies = {
+                "http": f"socks5h://{self.meek_host}:{self.meek_port}",
+                "https": f"socks5h://{self.meek_host}:{self.meek_port}",
+            }
+        else:
+            self.common.log("Meek", "start", "Could not obtain the meek port")
+            self.cleanup()
+            raise MeekNotRunning()
+
+    def cleanup(self):
+        """
+        Kill any meek subprocesses.
+        """
+        self.common.log("Meek", "cleanup")
+
+        if self.meek_proc:
+            self.meek_proc.terminate()
+            time.sleep(0.2)
+            if self.meek_proc.poll() is None:
+                self.common.log(
+                    "Meek",
+                    "cleanup",
+                    "Tried to terminate meek-client process but it's still running",
+                )
+                try:
+                    self.meek_proc.kill()
+                    time.sleep(0.2)
+                    if self.meek_proc.poll() is None:
+                        self.common.log(
+                            "Meek",
+                            "cleanup",
+                            "Tried to kill meek-client process but it's still running",
+                        )
+                except Exception:
+                    self.common.log(
+                        "Meek", "cleanup", "Exception while killing meek-client process"
+                    )
+            self.meek_proc = None
+
+            # Reset other Meek settings
+            self.meek_proxies = {}
+            self.meek_port = None
+
+
+class MeekNotRunning(Exception):
+    """
+    We were unable to start Meek or obtain the port
+    number it started on, in order to do domain fronting.
+    """
+
+
+class MeekNotFound(Exception):
+    """
+    We were unable to find the Meek Client binary.
+    """
diff --git a/cli/onionshare_cli/onion.py b/cli/onionshare_cli/onion.py
index 7f6faa17..536b9ba0 100644
--- a/cli/onionshare_cli/onion.py
+++ b/cli/onionshare_cli/onion.py
@@ -153,6 +153,8 @@ class Onion(object):
             self.tor_geo_ip_file_path,
             self.tor_geo_ipv6_file_path,
             self.obfs4proxy_file_path,
+            self.snowflake_file_path,
+            self.meek_client_file_path,
         ) = get_tor_paths()
 
         # The tor process
@@ -178,10 +180,10 @@ class Onion(object):
         key_bytes = bytes(key)
         key_b32 = base64.b32encode(key_bytes)
         # strip trailing ====
-        assert key_b32[-4:] == b'===='
+        assert key_b32[-4:] == b"===="
         key_b32 = key_b32[:-4]
         # change from b'ASDF' to ASDF
-        s = key_b32.decode('utf-8')
+        s = key_b32.decode("utf-8")
         return s
 
     def connect(
@@ -198,8 +200,6 @@ class Onion(object):
             )
             return
 
-        self.common.log("Onion", "connect")
-
         # Either use settings that are passed in, or use them from common
         if custom_settings:
             self.settings = custom_settings
@@ -210,6 +210,12 @@ class Onion(object):
             self.common.load_settings()
             self.settings = self.common.settings
 
+        self.common.log(
+            "Onion",
+            "connect",
+            f"connection_type={self.settings.get('connection_type')}",
+        )
+
         # The Tor controller
         self.c = None
 
@@ -302,43 +308,50 @@ class Onion(object):
             torrc_template = torrc_template.replace(
                 "{{socks_port}}", str(self.tor_socks_port)
             )
+            torrc_template = torrc_template.replace(
+                "{{obfs4proxy_path}}", str(self.obfs4proxy_file_path)
+            )
+            torrc_template = torrc_template.replace(
+                "{{snowflake_path}}", str(self.snowflake_file_path)
+            )
 
             with open(self.tor_torrc, "w") as f:
                 f.write(torrc_template)
 
                 # Bridge support
-                if self.settings.get("tor_bridges_use_obfs4"):
-                    f.write(
-                        f"ClientTransportPlugin obfs4 exec {self.obfs4proxy_file_path}\n"
-                    )
-                    with open(
-                        self.common.get_resource_path("torrc_template-obfs4")
-                    ) as o:
-                        for line in o:
-                            f.write(line)
-                elif self.settings.get("tor_bridges_use_meek_lite_azure"):
-                    f.write(
-                        f"ClientTransportPlugin meek_lite exec {self.obfs4proxy_file_path}\n"
-                    )
-                    with open(
-                        self.common.get_resource_path("torrc_template-meek_lite_azure")
-                    ) as o:
-                        for line in o:
-                            f.write(line)
-
-                if self.settings.get("tor_bridges_use_custom_bridges"):
-                    if "obfs4" in self.settings.get("tor_bridges_use_custom_bridges"):
-                        f.write(
-                            f"ClientTransportPlugin obfs4 exec {self.obfs4proxy_file_path}\n"
-                        )
-                    elif "meek_lite" in self.settings.get(
-                        "tor_bridges_use_custom_bridges"
-                    ):
-                        f.write(
-                            f"ClientTransportPlugin meek_lite exec {self.obfs4proxy_file_path}\n"
-                        )
-                    f.write(self.settings.get("tor_bridges_use_custom_bridges"))
-                    f.write("\nUseBridges 1")
+                if self.settings.get("bridges_enabled"):
+                    if self.settings.get("bridges_type") == "built-in":
+                        if self.settings.get("bridges_builtin_pt") == "obfs4":
+                            with open(
+                                self.common.get_resource_path("torrc_template-obfs4")
+                            ) as o:
+                                f.write(o.read())
+                        elif self.settings.get("bridges_builtin_pt") == "meek-azure":
+                            with open(
+                                self.common.get_resource_path(
+                                    "torrc_template-meek_lite_azure"
+                                )
+                            ) as o:
+                                f.write(o.read())
+                        elif self.settings.get("bridges_builtin_pt") == "snowflake":
+                            with open(
+                                self.common.get_resource_path(
+                                    "torrc_template-snowflake"
+                                )
+                            ) as o:
+                                f.write(o.read())
+
+                    elif self.settings.get("bridges_type") == "moat":
+                        for line in self.settings.get("bridges_moat").split("\n"):
+                            if line.strip() != "":
+                                f.write(f"Bridge {line}\n")
+                        f.write("\nUseBridges 1\n")
+
+                    elif self.settings.get("bridges_type") == "custom":
+                        for line in self.settings.get("bridges_custom").split("\n"):
+                            if line.strip() != "":
+                                f.write(f"Bridge {line}\n")
+                        f.write("\nUseBridges 1\n")
 
             # Execute a tor subprocess
             start_ts = time.time()
@@ -357,6 +370,7 @@ class Onion(object):
                     [self.tor_path, "-f", self.tor_torrc],
                     stdout=subprocess.PIPE,
                     stderr=subprocess.PIPE,
+                    env={"LD_LIBRARY_PATH": os.path.dirname(self.tor_path)},
                 )
 
             # Wait for the tor controller to start
@@ -410,11 +424,7 @@ class Onion(object):
                 time.sleep(0.2)
 
                 # If using bridges, it might take a bit longer to connect to Tor
-                if (
-                    self.settings.get("tor_bridges_use_custom_bridges")
-                    or self.settings.get("tor_bridges_use_obfs4")
-                    or self.settings.get("tor_bridges_use_meek_lite_azure")
-                ):
+                if self.settings.get("bridges_enabled"):
                     # Only override timeout if a custom timeout has not been passed in
                     if connect_timeout == 120:
                         connect_timeout = 150
@@ -650,16 +660,24 @@ class Onion(object):
                 )
                 raise TorTooOldStealth()
             else:
-                if key_type == "NEW" or not mode_settings.get("onion", "client_auth_priv_key"):
+                if key_type == "NEW" or not mode_settings.get(
+                    "onion", "client_auth_priv_key"
+                ):
                     # Generate a new key pair for Client Auth on new onions, or if
                     # it's a persistent onion but for some reason we don't them
                     client_auth_priv_key_raw = nacl.public.PrivateKey.generate()
                     client_auth_priv_key = self.key_str(client_auth_priv_key_raw)
-                    client_auth_pub_key = self.key_str(client_auth_priv_key_raw.public_key)
+                    client_auth_pub_key = self.key_str(
+                        client_auth_priv_key_raw.public_key
+                    )
                 else:
                     # These should have been saved in settings from the previous run of a persistent onion
-                    client_auth_priv_key = mode_settings.get("onion", "client_auth_priv_key")
-                    client_auth_pub_key = mode_settings.get("onion", "client_auth_pub_key")
+                    client_auth_priv_key = mode_settings.get(
+                        "onion", "client_auth_priv_key"
+                    )
+                    client_auth_pub_key = mode_settings.get(
+                        "onion", "client_auth_pub_key"
+                    )
 
         try:
             if not self.supports_stealth:
diff --git a/cli/onionshare_cli/resources/torrc_template b/cli/onionshare_cli/resources/torrc_template
index 8ac9e1ef..70e1cb35 100644
--- a/cli/onionshare_cli/resources/torrc_template
+++ b/cli/onionshare_cli/resources/torrc_template
@@ -6,3 +6,7 @@ AvoidDiskWrites 1
 Log notice stdout
 GeoIPFile {{geo_ip_file}}
 GeoIPv6File {{geo_ipv6_file}}
+
+# Bridge configurations
+ClientTransportPlugin meek_lite,obfs2,obfs3,obfs4,scramblesuit exec {{obfs4proxy_path}}
+ClientTransportPlugin snowflake exec {{snowflake_path}} -url https://snowflake-broker.torproject.net.global.prod.fastly.net/ -front cdn.sstatic.net -ice stun:stun.l.google.com:19302,stun:stun.voip.blackberry.com:3478,stun:stun.altar.com.pl:3478,stun:stun.antisip.com:3478,stun:stun.bluesip.net:3478,stun:stun.dus.net:3478,stun:stun.epygi.com:3478,stun:stun.sonetel.com:3478,stun:stun.sonetel.net:3478,stun:stun.stunprotocol.org:3478,stun:stun.uls.co.za:3478,stun:stun.voipgate.com:3478,stun:stun.voys.nl:3478
diff --git a/cli/onionshare_cli/resources/torrc_template-meek_lite_amazon b/cli/onionshare_cli/resources/torrc_template-meek_lite_amazon
deleted file mode 100644
index 606ae889..00000000
--- a/cli/onionshare_cli/resources/torrc_template-meek_lite_amazon
+++ /dev/null
@@ -1,2 +0,0 @@
-Bridge meek_lite 0.0.2.0:2 B9E7141C594AF25699E0079C1F0146F409495296 url=https://d2cly7j4zqgua7.cloudfront.net/ front=a0.awsstatic.com
-UseBridges 1
\ No newline at end of file
diff --git a/cli/onionshare_cli/resources/torrc_template-meek_lite_azure b/cli/onionshare_cli/resources/torrc_template-meek_lite_azure
index a9b374ba..6f601681 100644
--- a/cli/onionshare_cli/resources/torrc_template-meek_lite_azure
+++ b/cli/onionshare_cli/resources/torrc_template-meek_lite_azure
@@ -1,2 +1,3 @@
+# Enable built-in meek-azure bridge
 Bridge meek_lite 0.0.2.0:3 97700DFE9F483596DDA6264C4D7DF7641E1E39CE url=https://meek.azureedge.net/ front=ajax.aspnetcdn.com
-UseBridges 1
\ No newline at end of file
+UseBridges 1
diff --git a/cli/onionshare_cli/resources/torrc_template-obfs4 b/cli/onionshare_cli/resources/torrc_template-obfs4
index 8c52a011..720cc28c 100644
--- a/cli/onionshare_cli/resources/torrc_template-obfs4
+++ b/cli/onionshare_cli/resources/torrc_template-obfs4
@@ -1,3 +1,4 @@
+# Enable built-in obfs4-bridge
 Bridge obfs4 192.95.36.142:443 CDF2E852BF539B82BD10E27E9115A31734E378C2 cert=qUVQ0srL1JI/vO6V6m/24anYXiJD3QP2HgzUKQtQ7GRqqUvs7P+tG43RtAqdhLOALP7DJQ iat-mode=1
 Bridge obfs4 38.229.1.78:80 C8CBDB2464FC9804A69531437BCF2BE31FDD2EE4 cert=Hmyfd2ev46gGY7NoVxA9ngrPF2zCZtzskRTzoWXbxNkzeVnGFPWmrTtILRyqCTjHR+s9dg iat-mode=1
 Bridge obfs4 38.229.33.83:80 0BAC39417268B96B9F514E7F63FA6FBA1A788955 cert=VwEFpk9F/UN9JED7XpG1XOjm/O8ZCXK80oPecgWnNDZDv5pdkhq1OpbAH0wNqOT6H6BmRQ iat-mode=1
diff --git a/cli/onionshare_cli/resources/torrc_template-snowflake b/cli/onionshare_cli/resources/torrc_template-snowflake
new file mode 100644
index 00000000..4100d3be
--- /dev/null
+++ b/cli/onionshare_cli/resources/torrc_template-snowflake
@@ -0,0 +1,3 @@
+# Enable built-in snowflake bridge
+Bridge snowflake 192.0.2.3:1 2B280B23E1107BB62ABFC40DDCC8824814F80A72
+UseBridges 1
diff --git a/cli/onionshare_cli/settings.py b/cli/onionshare_cli/settings.py
index 4755d5b3..c7d74a70 100644
--- a/cli/onionshare_cli/settings.py
+++ b/cli/onionshare_cli/settings.py
@@ -105,10 +105,11 @@ class Settings(object):
             "auth_password": "",
             "use_autoupdate": True,
             "autoupdate_timestamp": None,
-            "no_bridges": True,
-            "tor_bridges_use_obfs4": False,
-            "tor_bridges_use_meek_lite_azure": False,
-            "tor_bridges_use_custom_bridges": "",
+            "bridges_enabled": False,
+            "bridges_type": "built-in",  # "built-in", "moat", or "custom"
+            "bridges_builtin_pt": "obfs4",  # "obfs4", "meek-azure", or "snowflake"
+            "bridges_moat": "",
+            "bridges_custom": "",
             "persistent_tabs": [],
             "locale": None,  # this gets defined in fill_in_defaults()
             "theme": 0,
diff --git a/cli/poetry.lock b/cli/poetry.lock
index c51e1d62..9314b096 100644
--- a/cli/poetry.lock
+++ b/cli/poetry.lock
@@ -1,122 +1,120 @@
 [[package]]
-category = "dev"
-description = "Atomic file writes."
-marker = "sys_platform == \"win32\""
 name = "atomicwrites"
+version = "1.4.0"
+description = "Atomic file writes."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.4.0"
 
 [[package]]
-category = "dev"
-description = "Classes Without Boilerplate"
 name = "attrs"
+version = "21.2.0"
+description = "Classes Without Boilerplate"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "21.2.0"
 
 [package.extras]
-dev = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface", "furo", "sphinx", "sphinx-notfound-page", "pre-commit"]
+dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface", "furo", "sphinx", "sphinx-notfound-page", "pre-commit"]
 docs = ["furo", "sphinx", "zope.interface", "sphinx-notfound-page"]
-tests = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface"]
-tests_no_zope = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins"]
+tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface"]
+tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins"]
 
 [[package]]
-category = "main"
-description = "The bidirectional mapping library for Python."
 name = "bidict"
+version = "0.21.3"
+description = "The bidirectional mapping library for Python."
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "0.21.2"
-
-[package.extras]
-coverage = ["coverage (<6)", "pytest-cov (<3)"]
-dev = ["setuptools-scm", "hypothesis (<6)", "py (<2)", "pytest (<7)", "pytest-benchmark (>=3.2.0,<4)", "sortedcollections (<2)", "sortedcontainers (<3)", "Sphinx (<4)", "sphinx-autodoc-typehints (<2)", "coverage (<6)", "pytest-cov (<3)", "pre-commit (<3)", "tox (<4)"]
-docs = ["Sphinx (<4)", "sphinx-autodoc-typehints (<2)"]
-precommit = ["pre-commit (<3)"]
-test = ["hypothesis (<6)", "py (<2)", "pytest (<7)", "pytest-benchmark (>=3.2.0,<4)", "sortedcollections (<2)", "sortedcontainers (<3)", "Sphinx (<4)", "sphinx-autodoc-typehints (<2)"]
 
 [[package]]
-category = "main"
-description = "Python package for providing Mozilla's CA Bundle."
 name = "certifi"
+version = "2021.10.8"
+description = "Python package for providing Mozilla's CA Bundle."
+category = "main"
 optional = false
 python-versions = "*"
-version = "2021.5.30"
 
 [[package]]
-category = "main"
-description = "Foreign Function Interface for Python calling C code."
 name = "cffi"
+version = "1.14.6"
+description = "Foreign Function Interface for Python calling C code."
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.14.6"
 
 [package.dependencies]
 pycparser = "*"
 
 [[package]]
+name = "charset-normalizer"
+version = "2.0.7"
+description = "The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet."
 category = "main"
-description = "Universal encoding detector for Python 2 and 3"
-name = "chardet"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "4.0.0"
+python-versions = ">=3.5.0"
+
+[package.extras]
+unicode_backport = ["unicodedata2"]
 
 [[package]]
-category = "main"
-description = "Composable command line interface toolkit"
 name = "click"
+version = "7.1.2"
+description = "Composable command line interface toolkit"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "7.1.2"
 
 [[package]]
-category = "main"
-description = "Cross-platform colored terminal text."
 name = "colorama"
+version = "0.4.4"
+description = "Cross-platform colored terminal text."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.4.4"
 
 [[package]]
-category = "main"
-description = "DNS toolkit"
 name = "dnspython"
+version = "2.1.0"
+description = "DNS toolkit"
+category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.16.0"
+python-versions = ">=3.6"
 
 [package.extras]
-DNSSEC = ["pycryptodome", "ecdsa (>=0.13)"]
-IDNA = ["idna (>=2.1)"]
+dnssec = ["cryptography (>=2.6)"]
+doh = ["requests", "requests-toolbelt"]
+idna = ["idna (>=2.1)"]
+curio = ["curio (>=1.2)", "sniffio (>=1.1)"]
+trio = ["trio (>=0.14.0)", "sniffio (>=1.1)"]
 
 [[package]]
-category = "main"
-description = "Highly concurrent networking library"
 name = "eventlet"
+version = "0.32.0"
+description = "Highly concurrent networking library"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.31.0"
 
 [package.dependencies]
-dnspython = ">=1.15.0,<2.0.0"
+dnspython = ">=1.15.0"
 greenlet = ">=0.3"
 six = ">=1.10.0"
 
 [[package]]
-category = "main"
-description = "A simple framework for building complex web applications."
 name = "flask"
+version = "1.1.4"
+description = "A simple framework for building complex web applications."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.1.4"
 
 [package.dependencies]
-Jinja2 = ">=2.10.1,<3.0"
-Werkzeug = ">=0.15,<2.0"
 click = ">=5.1,<8.0"
 itsdangerous = ">=0.24,<2.0"
+Jinja2 = ">=2.10.1,<3.0"
+Werkzeug = ">=0.15,<2.0"
 
 [package.extras]
 dev = ["pytest", "coverage", "tox", "sphinx", "pallets-sphinx-themes", "sphinxcontrib-log-cabinet", "sphinx-issues"]
@@ -124,79 +122,76 @@ docs = ["sphinx", "pallets-sphinx-themes", "sphinxcontrib-log-cabinet", "sphinx-
 dotenv = ["python-dotenv"]
 
 [[package]]
-category = "main"
-description = "Socket.IO integration for Flask applications"
 name = "flask-socketio"
+version = "5.0.1"
+description = "Socket.IO integration for Flask applications"
+category = "main"
 optional = false
 python-versions = "*"
-version = "5.0.1"
 
 [package.dependencies]
 Flask = ">=0.9"
 python-socketio = ">=5.0.2"
 
 [[package]]
-category = "main"
-description = "Lightweight in-process concurrent programming"
 name = "greenlet"
+version = "1.1.2"
+description = "Lightweight in-process concurrent programming"
+category = "main"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
-version = "1.1.0"
 
 [package.extras]
 docs = ["sphinx"]
 
 [[package]]
-category = "main"
-description = "Internationalized Domain Names in Applications (IDNA)"
 name = "idna"
+version = "3.2"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.10"
+python-versions = ">=3.5"
 
 [[package]]
-category = "dev"
-description = "Read metadata from Python packages"
-marker = "python_version < \"3.8\""
 name = "importlib-metadata"
+version = "4.8.1"
+description = "Read metadata from Python packages"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
-version = "4.4.0"
 
 [package.dependencies]
+typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
-[package.dependencies.typing-extensions]
-python = "<3.8"
-version = ">=3.6.4"
-
 [package.extras]
 docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
+perf = ["ipython"]
+testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-perf (>=0.9.2)", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
 
 [[package]]
-category = "dev"
-description = "iniconfig: brain-dead simple config-ini parsing"
 name = "iniconfig"
+version = "1.1.1"
+description = "iniconfig: brain-dead simple config-ini parsing"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.1.1"
 
 [[package]]
-category = "main"
-description = "Various helpers to pass data to untrusted environments and back."
 name = "itsdangerous"
+version = "1.1.0"
+description = "Various helpers to pass data to untrusted environments and back."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.1.0"
 
 [[package]]
-category = "main"
-description = "A very fast and expressive template engine."
 name = "jinja2"
+version = "2.11.3"
+description = "A very fast and expressive template engine."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.11.3"
 
 [package.dependencies]
 MarkupSafe = ">=0.23"
@@ -205,74 +200,73 @@ MarkupSafe = ">=0.23"
 i18n = ["Babel (>=0.8)"]
 
 [[package]]
-category = "main"
-description = "Safely add untrusted strings to HTML/XML markup."
 name = "markupsafe"
+version = "2.0.1"
+description = "Safely add untrusted strings to HTML/XML markup."
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "2.0.1"
 
 [[package]]
-category = "dev"
-description = "Core utilities for Python packages"
 name = "packaging"
+version = "21.0"
+description = "Core utilities for Python packages"
+category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "20.9"
+python-versions = ">=3.6"
 
 [package.dependencies]
 pyparsing = ">=2.0.2"
 
 [[package]]
-category = "dev"
-description = "plugin and hook calling mechanisms for python"
 name = "pluggy"
+version = "1.0.0"
+description = "plugin and hook calling mechanisms for python"
+category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.13.1"
+python-versions = ">=3.6"
 
 [package.dependencies]
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 
 [package.extras]
 dev = ["pre-commit", "tox"]
+testing = ["pytest", "pytest-benchmark"]
 
 [[package]]
-category = "main"
-description = "Cross-platform lib for process and system monitoring in Python."
 name = "psutil"
+version = "5.8.0"
+description = "Cross-platform lib for process and system monitoring in Python."
+category = "main"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "5.8.0"
 
 [package.extras]
 test = ["ipaddress", "mock", "unittest2", "enum34", "pywin32", "wmi"]
 
 [[package]]
-category = "dev"
-description = "library with cross-python path, ini-parsing, io, code, log facilities"
 name = "py"
+version = "1.10.0"
+description = "library with cross-python path, ini-parsing, io, code, log facilities"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.10.0"
 
 [[package]]
-category = "main"
-description = "C parser in Python"
 name = "pycparser"
+version = "2.20"
+description = "C parser in Python"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.20"
 
 [[package]]
-category = "main"
-description = "Python binding to the Networking and Cryptography (NaCl) library"
 name = "pynacl"
+version = "1.4.0"
+description = "Python binding to the Networking and Cryptography (NaCl) library"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.4.0"
 
 [package.dependencies]
 cffi = ">=1.4.1"
@@ -280,186 +274,181 @@ six = "*"
 
 [package.extras]
 docs = ["sphinx (>=1.6.5)", "sphinx-rtd-theme"]
-tests = ["pytest (>=3.2.1,<3.3.0 || >3.3.0)", "hypothesis (>=3.27.0)"]
+tests = ["pytest (>=3.2.1,!=3.3.0)", "hypothesis (>=3.27.0)"]
 
 [[package]]
-category = "dev"
-description = "Python parsing module"
 name = "pyparsing"
+version = "2.4.7"
+description = "Python parsing module"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "2.4.7"
 
 [[package]]
-category = "main"
-description = "A Python SOCKS client module. See https://github.com/Anorov/PySocks for more information."
 name = "pysocks"
+version = "1.7.1"
+description = "A Python SOCKS client module. See https://github.com/Anorov/PySocks for more information."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.7.1"
 
 [[package]]
-category = "dev"
-description = "pytest: simple powerful testing with Python"
 name = "pytest"
+version = "6.2.5"
+description = "pytest: simple powerful testing with Python"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
-version = "6.2.4"
 
 [package.dependencies]
-atomicwrites = ">=1.0"
+atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
 attrs = ">=19.2.0"
-colorama = "*"
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 iniconfig = "*"
 packaging = "*"
-pluggy = ">=0.12,<1.0.0a1"
+pluggy = ">=0.12,<2.0"
 py = ">=1.8.2"
 toml = "*"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
-
 [package.extras]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
 
 [[package]]
-category = "main"
-description = "Engine.IO server"
 name = "python-engineio"
+version = "4.2.1"
+description = "Engine.IO server and client for Python"
+category = "main"
 optional = false
-python-versions = "*"
-version = "4.2.0"
+python-versions = ">=3.6"
 
 [package.extras]
 asyncio_client = ["aiohttp (>=3.4)"]
 client = ["requests (>=2.21.0)", "websocket-client (>=0.54.0)"]
 
 [[package]]
-category = "main"
-description = "Socket.IO server"
 name = "python-socketio"
+version = "5.4.0"
+description = "Socket.IO server and client for Python"
+category = "main"
 optional = false
-python-versions = "*"
-version = "5.3.0"
+python-versions = ">=3.6"
 
 [package.dependencies]
 bidict = ">=0.21.0"
 python-engineio = ">=4.1.0"
 
 [package.extras]
-asyncio_client = ["aiohttp (>=3.4)", "websockets (>=7.0)"]
+asyncio_client = ["aiohttp (>=3.4)"]
 client = ["requests (>=2.21.0)", "websocket-client (>=0.54.0)"]
 
 [[package]]
-category = "main"
-description = "Python HTTP for Humans."
 name = "requests"
+version = "2.26.0"
+description = "Python HTTP for Humans."
+category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.25.1"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
 
 [package.dependencies]
 certifi = ">=2017.4.17"
-chardet = ">=3.0.2,<5"
-idna = ">=2.5,<3"
+charset-normalizer = {version = ">=2.0.0,<2.1.0", markers = "python_version >= \"3\""}
+idna = {version = ">=2.5,<4", markers = "python_version >= \"3\""}
+PySocks = {version = ">=1.5.6,<1.5.7 || >1.5.7", optional = true, markers = "extra == \"socks\""}
 urllib3 = ">=1.21.1,<1.27"
 
-[package.dependencies.PySocks]
-optional = true
-version = ">=1.5.6,<1.5.7 || >1.5.7"
-
 [package.extras]
-security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7)", "win-inet-pton"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
+use_chardet_on_py3 = ["chardet (>=3.0.2,<5)"]
 
 [[package]]
-category = "main"
-description = "Python 2 and 3 compatibility utilities"
 name = "six"
+version = "1.16.0"
+description = "Python 2 and 3 compatibility utilities"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "1.16.0"
 
 [[package]]
-category = "main"
-description = ""
 name = "stem"
+version = "1.8.1"
+description = "Stem is a Python controller library that allows applications to interact with Tor (https://www.torproject.org/)."
+category = "main"
 optional = false
 python-versions = "*"
-version = "1.8.1"
+develop = false
 
 [package.source]
-reference = "de3d03a03c7ee57c74c80e9c63cb88072d833717"
 type = "git"
 url = "https://github.com/onionshare/stem.git"
+reference = "1.8.1"
+resolved_reference = "de3d03a03c7ee57c74c80e9c63cb88072d833717"
 
 [[package]]
-category = "dev"
-description = "Python Library for Tom's Obvious, Minimal Language"
 name = "toml"
+version = "0.10.2"
+description = "Python Library for Tom's Obvious, Minimal Language"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "0.10.2"
 
 [[package]]
-category = "dev"
-description = "Backported and Experimental Type Hints for Python 3.5+"
-marker = "python_version < \"3.8\""
 name = "typing-extensions"
+version = "3.10.0.2"
+description = "Backported and Experimental Type Hints for Python 3.5+"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "3.10.0.0"
 
 [[package]]
-category = "main"
-description = "ASCII transliterations of Unicode text"
 name = "unidecode"
+version = "1.3.2"
+description = "ASCII transliterations of Unicode text"
+category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.2.0"
+python-versions = ">=3.5"
 
 [[package]]
-category = "main"
-description = "HTTP library with thread-safe connection pooling, file post, and more."
 name = "urllib3"
+version = "1.26.7"
+description = "HTTP library with thread-safe connection pooling, file post, and more."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-version = "1.26.5"
 
 [package.extras]
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 secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
+socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
 [[package]]
-category = "main"
-description = "The comprehensive WSGI web application library."
 name = "werkzeug"
+version = "1.0.1"
+description = "The comprehensive WSGI web application library."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.0.1"
 
 [package.extras]
 dev = ["pytest", "pytest-timeout", "coverage", "tox", "sphinx", "pallets-sphinx-themes", "sphinx-issues"]
 watchdog = ["watchdog"]
 
 [[package]]
-category = "dev"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-marker = "python_version < \"3.8\""
 name = "zipp"
+version = "3.6.0"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
-version = "3.4.1"
 
 [package.extras]
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+testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy"]
 
 [metadata]
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 python-versions = "^3.6"
+content-hash = "181891640e59dac730905019444d42ef8e99da0c34c96fb8a616781661bae537"
 
 [metadata.files]
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@@ -471,12 +460,12 @@ attrs = [
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@@ -554,63 +543,64 @@ flask-socketio = [
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 ]
 unidecode = [
-    {file = "Unidecode-1.2.0-py2.py3-none-any.whl", hash = "sha256:12435ef2fc4cdfd9cf1035a1db7e98b6b047fe591892e81f34e94959591fad00"},
-    {file = "Unidecode-1.2.0.tar.gz", hash = "sha256:8d73a97d387a956922344f6b74243c2c6771594659778744b2dbdaad8f6b727d"},
+    {file = "Unidecode-1.3.2-py3-none-any.whl", hash = "sha256:215fe33c9d1c889fa823ccb66df91b02524eb8cc8c9c80f9c5b8129754d27829"},
+    {file = "Unidecode-1.3.2.tar.gz", hash = "sha256:669898c1528912bcf07f9819dc60df18d057f7528271e31f8ec28cc88ef27504"},
 ]
 urllib3 = [
-    {file = "urllib3-1.26.5-py2.py3-none-any.whl", hash = "sha256:753a0374df26658f99d826cfe40394a686d05985786d946fbe4165b5148f5a7c"},
-    {file = "urllib3-1.26.5.tar.gz", hash = "sha256:a7acd0977125325f516bda9735fa7142b909a8d01e8b2e4c8108d0984e6e0098"},
+    {file = "urllib3-1.26.7-py2.py3-none-any.whl", hash = "sha256:c4fdf4019605b6e5423637e01bc9fe4daef873709a7973e195ceba0a62bbc844"},
+    {file = "urllib3-1.26.7.tar.gz", hash = "sha256:4987c65554f7a2dbf30c18fd48778ef124af6fab771a377103da0585e2336ece"},
 ]
 werkzeug = [
     {file = "Werkzeug-1.0.1-py2.py3-none-any.whl", hash = "sha256:2de2a5db0baeae7b2d2664949077c2ac63fbd16d98da0ff71837f7d1dea3fd43"},
     {file = "Werkzeug-1.0.1.tar.gz", hash = "sha256:6c80b1e5ad3665290ea39320b91e1be1e0d5f60652b964a3070216de83d2e47c"},
 ]
 zipp = [
-    {file = "zipp-3.4.1-py3-none-any.whl", hash = "sha256:51cb66cc54621609dd593d1787f286ee42a5c0adbb4b29abea5a63edc3e03098"},
-    {file = "zipp-3.4.1.tar.gz", hash = "sha256:3607921face881ba3e026887d8150cca609d517579abe052ac81fc5aeffdbd76"},
+    {file = "zipp-3.6.0-py3-none-any.whl", hash = "sha256:9fe5ea21568a0a70e50f273397638d39b03353731e6cbbb3fd8502a33fec40bc"},
+    {file = "zipp-3.6.0.tar.gz", hash = "sha256:71c644c5369f4a6e07636f0aa966270449561fcea2e3d6747b8d23efaa9d7832"},
 ]
diff --git a/cli/tests/test_cli_common.py b/cli/tests/test_cli_common.py
index 9f113a84..9a64d762 100644
--- a/cli/tests/test_cli_common.py
+++ b/cli/tests/test_cli_common.py
@@ -162,11 +162,19 @@ class TestGetTorPaths:
         tor_geo_ip_file_path = os.path.join(base_path, "Resources", "Tor", "geoip")
         tor_geo_ipv6_file_path = os.path.join(base_path, "Resources", "Tor", "geoip6")
         obfs4proxy_file_path = os.path.join(base_path, "Resources", "Tor", "obfs4proxy")
+        meek_client_file_path = os.path.join(
+            base_path, "Resources", "Tor", "meek-client"
+        )
+        snowflake_file_path = os.path.join(
+            base_path, "Resources", "Tor", "snowflake-client"
+        )
         assert common_obj.get_tor_paths() == (
             tor_path,
             tor_geo_ip_file_path,
             tor_geo_ipv6_file_path,
             obfs4proxy_file_path,
+            snowflake_file_path,
+            meek_client_file_path,
         )
 
     @pytest.mark.skipif(sys.platform != "linux", reason="requires Linux")
@@ -176,6 +184,8 @@ class TestGetTorPaths:
             tor_geo_ip_file_path,
             tor_geo_ipv6_file_path,
             _,  # obfs4proxy is optional
+            _,  # snowflake-client is optional
+            _,  # meek-client is optional
         ) = common_obj.get_tor_paths()
 
         assert os.path.basename(tor_path) == "tor"
@@ -199,6 +209,12 @@ class TestGetTorPaths:
         obfs4proxy_file_path = os.path.join(
             os.path.join(base_path, "Tor"), "obfs4proxy.exe"
         )
+        snowflake_file_path = os.path.join(
+            os.path.join(base_path, "Tor"), "snowflake-client.exe"
+        )
+        meek_client_file_path = os.path.join(
+            os.path.join(base_path, "Tor"), "meek-client.exe"
+        )
         tor_geo_ip_file_path = os.path.join(
             os.path.join(os.path.join(base_path, "Data"), "Tor"), "geoip"
         )
@@ -210,6 +226,8 @@ class TestGetTorPaths:
             tor_geo_ip_file_path,
             tor_geo_ipv6_file_path,
             obfs4proxy_file_path,
+            snowflake_file_path,
+            meek_client_file_path,
         )
 
 
diff --git a/cli/tests/test_cli_settings.py b/cli/tests/test_cli_settings.py
index ed8d5bb9..9513b013 100644
--- a/cli/tests/test_cli_settings.py
+++ b/cli/tests/test_cli_settings.py
@@ -29,12 +29,13 @@ class TestSettings:
             "auth_password": "",
             "use_autoupdate": True,
             "autoupdate_timestamp": None,
-            "no_bridges": True,
-            "tor_bridges_use_obfs4": False,
-            "tor_bridges_use_meek_lite_azure": False,
-            "tor_bridges_use_custom_bridges": "",
+            "bridges_enabled": False,
+            "bridges_type": "built-in",
+            "bridges_builtin_pt": "obfs4",
+            "bridges_moat": "",
+            "bridges_custom": "",
             "persistent_tabs": [],
-            "theme":0
+            "theme": 0,
         }
         for key in settings_obj._settings:
             # Skip locale, it will not always default to the same thing
@@ -93,10 +94,11 @@ class TestSettings:
         assert settings_obj.get("use_autoupdate") is True
         assert settings_obj.get("autoupdate_timestamp") is None
         assert settings_obj.get("autoupdate_timestamp") is None
-        assert settings_obj.get("no_bridges") is True
-        assert settings_obj.get("tor_bridges_use_obfs4") is False
-        assert settings_obj.get("tor_bridges_use_meek_lite_azure") is False
-        assert settings_obj.get("tor_bridges_use_custom_bridges") == ""
+        assert settings_obj.get("bridges_enabled") is False
+        assert settings_obj.get("bridges_type") == "built-in"
+        assert settings_obj.get("bridges_builtin_pt") == "obfs4"
+        assert settings_obj.get("bridges_moat") == ""
+        assert settings_obj.get("bridges_custom") == ""
 
     def test_set_version(self, settings_obj):
         settings_obj.set("version", "CUSTOM_VERSION")
@@ -139,10 +141,10 @@ class TestSettings:
 
     def test_set_custom_bridge(self, settings_obj):
         settings_obj.set(
-            "tor_bridges_use_custom_bridges",
+            "bridges_custom",
             "Bridge 45.3.20.65:9050 21300AD88890A49C429A6CB9959CFD44490A8F6E",
         )
         assert (
-            settings_obj._settings["tor_bridges_use_custom_bridges"]
+            settings_obj._settings["bridges_custom"]
             == "Bridge 45.3.20.65:9050 21300AD88890A49C429A6CB9959CFD44490A8F6E"
         )
diff --git a/desktop/README.md b/desktop/README.md
index 4a59fe03..7f13ad70 100644
--- a/desktop/README.md
+++ b/desktop/README.md
@@ -13,9 +13,19 @@ cd onionshare/desktop
 
 #### Linux
 
-If you're using Linux, install `tor` and `obfs4proxy` from either the [official Debian repository](https://support.torproject.org/apt/tor-deb-repo/), or from your package manager.
+In Ubuntu 20.04 you need the `libxcb-xinerama0` package installed.
 
-In Ubuntu 20.04 you also need the `libxcb-xinerama0` package installed.
+Install python dependencies:
+
+```sh
+pip3 install --user poetry requests
+```
+
+Download Tor Browser and extract the binaries:
+
+```sh
+./scripts/get-tor-linux.py
+```
 
 #### macOS
 
@@ -53,6 +63,16 @@ Download Tor Browser and extract the binaries:
 python scripts\get-tor-windows.py
 ```
 
+### Compile dependencies
+
+Install Go. The simplest way to make sure everything works is to install Go by following [these instructions](https://golang.org/doc/install). (In Windows, make sure to install the 32-bit version of Go, such as `go1.17.3.windows-386.msi`.)
+
+Download and compile `meek-client`:
+
+```
+./scripts/build-meek-client.py
+```
+
 ### Prepare the virtual environment
 
 OnionShare uses [Briefcase](https://briefcase.readthedocs.io/en/latest/).
diff --git a/desktop/scripts/build-meek-client.py b/desktop/scripts/build-meek-client.py
new file mode 100755
index 00000000..af58173a
--- /dev/null
+++ b/desktop/scripts/build-meek-client.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+OnionShare | https://onionshare.org/
+
+Copyright (C) 2014-2021 Micah Lee, et al. <micah@micahflee.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+"""
+This script downloads a pre-built tor binary to bundle with OnionShare.
+In order to avoid a Mac gnupg dependency, I manually verify the signature
+and hard-code the sha256 hash.
+"""
+import shutil
+import os
+import subprocess
+import inspect
+import platform
+
+
+def main():
+    if shutil.which("go") is None:
+        print("Install go: https://golang.org/doc/install")
+        return
+
+    subprocess.run(
+        [
+            "go",
+            "install",
+            "git.torproject.org/pluggable-transports/meek.git/meek-client@v0.37.0",
+        ]
+    )
+
+    root_path = os.path.dirname(
+        os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
+    )
+    if platform.system() == "Windows":
+        dist_path = os.path.join(root_path, "src", "onionshare", "resources", "tor", "Tor")
+        bin_filename = "meek-client.exe"
+    else:
+        dist_path = os.path.join(root_path, "src", "onionshare", "resources", "tor")
+        bin_filename = "meek-client"
+
+    bin_path = os.path.join(os.path.expanduser("~"), "go", "bin", bin_filename)
+    shutil.copyfile(
+        os.path.join(bin_path),
+        os.path.join(dist_path, bin_filename),
+    )
+    os.chmod(os.path.join(dist_path, bin_filename), 0o755)
+
+    print(f"Installed {bin_filename} in {dist_path}")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/desktop/scripts/get-tor-linux.py b/desktop/scripts/get-tor-linux.py
new file mode 100755
index 00000000..51beb475
--- /dev/null
+++ b/desktop/scripts/get-tor-linux.py
@@ -0,0 +1,131 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+OnionShare | https://onionshare.org/
+
+Copyright (C) 2014-2021 Micah Lee, et al. <micah@micahflee.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+"""
+This script downloads a pre-built tor binary to bundle with OnionShare.
+In order to avoid a Mac gnupg dependency, I manually verify the signature
+and hard-code the sha256 hash.
+"""
+import inspect
+import os
+import sys
+import hashlib
+import shutil
+import subprocess
+import requests
+
+
+def main():
+    tarball_url = "https://dist.torproject.org/torbrowser/11.0a10/tor-browser-linux64-11.0a10_en-US.tar.xz"
+    tarball_filename = "tor-browser-linux64-11.0a10_en-US.tar.xz"
+    expected_tarball_sha256 = (
+        "5d3e2ebc4fb6a10f44624359bc2a5a151a57e8402cbd8563d15f9b2524374f1f"
+    )
+
+    # Build paths
+    root_path = os.path.dirname(
+        os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
+    )
+    working_path = os.path.join(root_path, "build", "tor")
+    tarball_path = os.path.join(working_path, tarball_filename)
+    dist_path = os.path.join(root_path, "src", "onionshare", "resources", "tor")
+
+    # Make sure dirs exist
+    if not os.path.exists(working_path):
+        os.makedirs(working_path, exist_ok=True)
+
+    if not os.path.exists(dist_path):
+        os.makedirs(dist_path, exist_ok=True)
+
+    # Make sure the tarball is downloaded
+    if not os.path.exists(tarball_path):
+        print("Downloading {}".format(tarball_url))
+        r = requests.get(tarball_url)
+        open(tarball_path, "wb").write(r.content)
+        tarball_sha256 = hashlib.sha256(r.content).hexdigest()
+    else:
+        tarball_data = open(tarball_path, "rb").read()
+        tarball_sha256 = hashlib.sha256(tarball_data).hexdigest()
+
+    # Compare the hash
+    if tarball_sha256 != expected_tarball_sha256:
+        print("ERROR! The sha256 doesn't match:")
+        print("expected: {}".format(expected_tarball_sha256))
+        print("  actual: {}".format(tarball_sha256))
+        sys.exit(-1)
+
+    # Delete extracted tarball, if it's there
+    shutil.rmtree(os.path.join(working_path, "tor-browser_en-US"), ignore_errors=True)
+
+    # Extract the tarball
+    subprocess.call(["tar", "-xvf", tarball_path], cwd=working_path)
+    tarball_tor_path = os.path.join(
+        working_path, "tor-browser_en-US", "Browser", "TorBrowser"
+    )
+
+    # Copy into dist
+    shutil.copyfile(
+        os.path.join(tarball_tor_path, "Data", "Tor", "geoip"),
+        os.path.join(dist_path, "geoip"),
+    )
+    shutil.copyfile(
+        os.path.join(tarball_tor_path, "Data", "Tor", "geoip6"),
+        os.path.join(dist_path, "geoip6"),
+    )
+    shutil.copyfile(
+        os.path.join(tarball_tor_path, "Tor", "tor"),
+        os.path.join(dist_path, "tor"),
+    )
+    os.chmod(os.path.join(dist_path, "tor"), 0o755)
+    shutil.copyfile(
+        os.path.join(tarball_tor_path, "Tor", "libcrypto.so.1.1"),
+        os.path.join(dist_path, "libcrypto.so.1.1"),
+    )
+    shutil.copyfile(
+        os.path.join(tarball_tor_path, "Tor", "libevent-2.1.so.7"),
+        os.path.join(dist_path, "libevent-2.1.so.7"),
+    )
+    shutil.copyfile(
+        os.path.join(tarball_tor_path, "Tor", "libssl.so.1.1"),
+        os.path.join(dist_path, "libssl.so.1.1"),
+    )
+    shutil.copyfile(
+        os.path.join(tarball_tor_path, "Tor", "libstdc++", "libstdc++.so.6"),
+        os.path.join(dist_path, "libstdc++.so.6"),
+    )
+    shutil.copyfile(
+        os.path.join(tarball_tor_path, "Tor", "PluggableTransports", "obfs4proxy"),
+        os.path.join(dist_path, "obfs4proxy"),
+    )
+    os.chmod(os.path.join(dist_path, "obfs4proxy"), 0o755)
+    shutil.copyfile(
+        os.path.join(
+            tarball_tor_path, "Tor", "PluggableTransports", "snowflake-client"
+        ),
+        os.path.join(dist_path, "snowflake-client"),
+    )
+    os.chmod(os.path.join(dist_path, "snowflake-client"), 0o755)
+
+    print(f"Tor binaries extracted to: {dist_path}")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/desktop/scripts/get-tor-osx.py b/desktop/scripts/get-tor-osx.py
index be5f7a56..80d7aee8 100755
--- a/desktop/scripts/get-tor-osx.py
+++ b/desktop/scripts/get-tor-osx.py
@@ -34,10 +34,10 @@ import requests
 
 
 def main():
-    dmg_url = "https://dist.torproject.org/torbrowser/11.0a7/TorBrowser-11.0a7-osx64_en-US.dmg"
-    dmg_filename = "TorBrowser-11.0a7-osx64_en-US.dmg"
+    dmg_url = "https://dist.torproject.org/torbrowser/11.0a10/TorBrowser-11.0a10-osx64_en-US.dmg"
+    dmg_filename = "TorBrowser-11.0a10-osx64_en-US.dmg"
     expected_dmg_sha256 = (
-        "46594cefa29493150d1c0e1933dd656aafcb6b51ef310d44ac059eed2fd1388e"
+        "c6823a28fd28205437564815f93011ff93b7972da2a8ce16919adfc65909e7b9"
     )
 
     # Build paths
@@ -101,6 +101,14 @@ def main():
         os.path.join(dist_path, "obfs4proxy"),
     )
     os.chmod(os.path.join(dist_path, "obfs4proxy"), 0o755)
+    # snowflake-client binary
+    shutil.copyfile(
+        os.path.join(
+            dmg_tor_path, "MacOS", "Tor", "PluggableTransports", "snowflake-client"
+        ),
+        os.path.join(dist_path, "snowflake-client"),
+    )
+    os.chmod(os.path.join(dist_path, "snowflake-client"), 0o755)
 
     # Eject dmg
     subprocess.call(["diskutil", "eject", "/Volumes/Tor Browser"])
diff --git a/desktop/scripts/get-tor-windows.py b/desktop/scripts/get-tor-windows.py
index 751faecc..8ca2e79f 100644
--- a/desktop/scripts/get-tor-windows.py
+++ b/desktop/scripts/get-tor-windows.py
@@ -33,10 +33,10 @@ import requests
 
 
 def main():
-    exe_url = "https://dist.torproject.org/torbrowser/11.0a7/torbrowser-install-11.0a7_en-US.exe"
-    exe_filename = "torbrowser-install-11.0a7_en-US.exe"
+    exe_url = "https://dist.torproject.org/torbrowser/11.0a10/torbrowser-install-11.0a10_en-US.exe"
+    exe_filename = "torbrowser-install-11.0a10_en-US.exe"
     expected_exe_sha256 = (
-        "8b2013669d88e3ae8fa9bc17a3495eaac9475f79a849354e826e5132811a860b"
+        "f567dd8368dea0a8d7bbf7c19ece7840f93d493e70662939b92f5058c8dc8d2d"
     )
     # Build paths
     root_path = os.path.dirname(
diff --git a/desktop/scripts/rebuild-cli.py b/desktop/scripts/rebuild-cli.py
index 66582cf1..f9a43554 100755
--- a/desktop/scripts/rebuild-cli.py
+++ b/desktop/scripts/rebuild-cli.py
@@ -38,6 +38,7 @@ def main():
     # Reinstall the new wheel
     subprocess.call(["pip", "uninstall", "onionshare-cli", "-y"])
     subprocess.call(["pip", "install", os.path.join(desktop_path, wheel_basename)])
+    subprocess.call(["pip", "install", "typing-extensions"])
 
 
 if __name__ == "__main__":
diff --git a/desktop/src/onionshare/gui_common.py b/desktop/src/onionshare/gui_common.py
index 182d63f2..0db0f051 100644
--- a/desktop/src/onionshare/gui_common.py
+++ b/desktop/src/onionshare/gui_common.py
@@ -93,6 +93,7 @@ class GuiCommon:
         share_zip_progess_bar_chunk_color = "#4E064F"
         history_background_color = "#ffffff"
         history_label_color = "#000000"
+        settings_error_color = "#FF0000"
         if color_mode == "dark":
             header_color = "#F2F2F2"
             title_color = "#F2F2F2"
@@ -103,6 +104,7 @@ class GuiCommon:
             share_zip_progess_bar_border_color = "#F2F2F2"
             history_background_color = "#191919"
             history_label_color = "#ffffff"
+            settings_error_color = "#FF9999"
 
         return {
             # OnionShareGui styles
@@ -205,14 +207,14 @@ class GuiCommon:
             "downloads_uploads_not_empty": """
                 QWidget{
                     background-color: """
-                +   history_background_color
-                +""";
+            + history_background_color
+            + """;
                 }""",
             "downloads_uploads_empty": """
                 QWidget {
                     background-color: """
-                +   history_background_color
-                +""";
+            + history_background_color
+            + """;
                     border: 1px solid #999999;
                 }
                 QWidget QLabel {
@@ -263,7 +265,7 @@ class GuiCommon:
             + """;
                     width: 10px;
                 }""",
-            "history_default_label" : """
+            "history_default_label": """
                 QLabel {
                     color: """
             + history_label_color
@@ -281,6 +283,11 @@ class GuiCommon:
                 QLabel {
                     color: #cc0000;
                 }""",
+            "tor_not_connected_label": """
+                QLabel {
+                    font-size: 16px;
+                    font-style: italic;
+                }""",
             # New tab
             "new_tab_button_image": """
                 QLabel {
@@ -392,44 +399,50 @@ class GuiCommon:
                 QPushButton {
                     padding: 5px 10px;
                 }""",
-            # Settings dialog
-            "settings_version": """
-                QLabel {
-                    color: #666666;
-                }""",
-            "settings_tor_status": """
-                QLabel {
-                    background-color: #ffffff;
-                    color: #000000;
-                    padding: 10px;
-                }""",
-            "settings_whats_this": """
-                QLabel {
-                    font-size: 12px;
-                }""",
-            "settings_connect_to_tor": """
+            # Tor Settings dialogs
+            "tor_settings_error": """
                 QLabel {
-                    font-style: italic;
-                }""",
+                    color: """
+            + settings_error_color
+            + """;
+                }
+                """,
         }
 
     def get_tor_paths(self):
         if self.common.platform == "Linux":
-            tor_path = shutil.which("tor")
-            obfs4proxy_file_path = shutil.which("obfs4proxy")
-            prefix = os.path.dirname(os.path.dirname(tor_path))
-            tor_geo_ip_file_path = os.path.join(prefix, "share/tor/geoip")
-            tor_geo_ipv6_file_path = os.path.join(prefix, "share/tor/geoip6")
-        elif self.common.platform == "Windows":
+            base_path = self.get_resource_path("tor")
+            if os.path.exists(base_path):
+                tor_path = os.path.join(base_path, "tor")
+                tor_geo_ip_file_path = os.path.join(base_path, "geoip")
+                tor_geo_ipv6_file_path = os.path.join(base_path, "geoip6")
+                obfs4proxy_file_path = os.path.join(base_path, "obfs4proxy")
+                snowflake_file_path = os.path.join(base_path, "snowflake-client")
+                meek_client_file_path = os.path.join(base_path, "meek-client")
+            else:
+                # Fallback to looking in the path
+                tor_path = shutil.which("tor")
+                obfs4proxy_file_path = shutil.which("obfs4proxy")
+                snowflake_file_path = shutil.which("snowflake-client")
+                meek_client_file_path = shutil.which("meek-client")
+                prefix = os.path.dirname(os.path.dirname(tor_path))
+                tor_geo_ip_file_path = os.path.join(prefix, "share/tor/geoip")
+                tor_geo_ipv6_file_path = os.path.join(prefix, "share/tor/geoip6")
+
+        if self.common.platform == "Windows":
             base_path = self.get_resource_path("tor")
             tor_path = os.path.join(base_path, "Tor", "tor.exe")
             obfs4proxy_file_path = os.path.join(base_path, "Tor", "obfs4proxy.exe")
+            snowflake_file_path = os.path.join(base_path, "Tor", "snowflake-client.exe")
+            meek_client_file_path = os.path.join(base_path, "Tor", "meek-client.exe")
             tor_geo_ip_file_path = os.path.join(base_path, "Data", "Tor", "geoip")
             tor_geo_ipv6_file_path = os.path.join(base_path, "Data", "Tor", "geoip6")
         elif self.common.platform == "Darwin":
             base_path = self.get_resource_path("tor")
             tor_path = os.path.join(base_path, "tor")
             obfs4proxy_file_path = os.path.join(base_path, "obfs4proxy")
+            snowflake_file_path = os.path.join(base_path, "snowflake-client")
+            meek_client_file_path = os.path.join(base_path, "meek-client")
             tor_geo_ip_file_path = os.path.join(base_path, "geoip")
             tor_geo_ipv6_file_path = os.path.join(base_path, "geoip6")
         elif self.common.platform == "BSD":
@@ -437,12 +450,16 @@ class GuiCommon:
             tor_geo_ip_file_path = "/usr/local/share/tor/geoip"
             tor_geo_ipv6_file_path = "/usr/local/share/tor/geoip6"
             obfs4proxy_file_path = "/usr/local/bin/obfs4proxy"
+            meek_client_file_path = "/usr/local/bin/meek-client"
+            snowflake_file_path = "/usr/local/bin/snowflake-client"
 
         return (
             tor_path,
             tor_geo_ip_file_path,
             tor_geo_ipv6_file_path,
             obfs4proxy_file_path,
+            snowflake_file_path,
+            meek_client_file_path,
         )
 
     @staticmethod
diff --git a/desktop/src/onionshare/main_window.py b/desktop/src/onionshare/main_window.py
index d87092b6..546592a1 100644
--- a/desktop/src/onionshare/main_window.py
+++ b/desktop/src/onionshare/main_window.py
@@ -18,12 +18,12 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 """
 
+import os
 import time
 from PySide2 import QtCore, QtWidgets, QtGui
 
 from . import strings
-from .tor_connection_dialog import TorConnectionDialog
-from .settings_dialog import SettingsDialog
+from .tor_connection import TorConnectionDialog
 from .widgets import Alert
 from .update_checker import UpdateThread
 from .tab_widget import TabWidget
@@ -106,6 +106,24 @@ class MainWindow(QtWidgets.QMainWindow):
         )
         self.status_bar.addPermanentWidget(self.status_bar.server_status_indicator)
 
+        # Tor settings button
+        self.tor_settings_button = QtWidgets.QPushButton()
+        self.tor_settings_button.setDefault(False)
+        self.tor_settings_button.setFixedSize(40, 50)
+        self.tor_settings_button.setIcon(
+            QtGui.QIcon(
+                GuiCommon.get_resource_path(
+                    "images/{}_tor_settings.png".format(self.common.gui.color_mode)
+                )
+            )
+        )
+        self.tor_settings_button.clicked.connect(self.open_tor_settings)
+        self.tor_settings_button.setStyleSheet(self.common.gui.css["settings_button"])
+        self.status_bar.addPermanentWidget(self.tor_settings_button)
+
+        if os.environ.get("ONIONSHARE_HIDE_TOR_SETTINGS") == "1":
+            self.tor_settings_button.hide()
+
         # Settings button
         self.settings_button = QtWidgets.QPushButton()
         self.settings_button.setDefault(False)
@@ -145,7 +163,7 @@ class MainWindow(QtWidgets.QMainWindow):
         # Start the "Connecting to Tor" dialog, which calls onion.connect()
         tor_con = TorConnectionDialog(self.common)
         tor_con.canceled.connect(self.tor_connection_canceled)
-        tor_con.open_settings.connect(self.tor_connection_open_settings)
+        tor_con.open_tor_settings.connect(self.tor_connection_open_tor_settings)
         if not self.common.gui.local_only:
             tor_con.start()
             self.settings_have_changed()
@@ -200,7 +218,7 @@ class MainWindow(QtWidgets.QMainWindow):
                     "_tor_connection_canceled",
                     "Settings button clicked",
                 )
-                self.open_settings()
+                self.open_tor_settings()
 
             if a.clickedButton() == quit_button:
                 # Quit
@@ -214,23 +232,28 @@ class MainWindow(QtWidgets.QMainWindow):
         # Wait 100ms before asking
         QtCore.QTimer.singleShot(100, ask)
 
-    def tor_connection_open_settings(self):
+    def tor_connection_open_tor_settings(self):
         """
-        The TorConnectionDialog wants to open the Settings dialog
+        The TorConnectionDialog wants to open the Tor Settings dialog
         """
-        self.common.log("MainWindow", "tor_connection_open_settings")
+        self.common.log("MainWindow", "tor_connection_open_tor_settings")
 
         # Wait 1ms for the event loop to finish closing the TorConnectionDialog
-        QtCore.QTimer.singleShot(1, self.open_settings)
+        QtCore.QTimer.singleShot(1, self.open_tor_settings)
+
+    def open_tor_settings(self):
+        """
+        Open the TorSettingsTab
+        """
+        self.common.log("MainWindow", "open_tor_settings")
+        self.tabs.open_tor_settings_tab()
 
     def open_settings(self):
         """
-        Open the SettingsDialog.
+        Open the SettingsTab
         """
         self.common.log("MainWindow", "open_settings")
-        d = SettingsDialog(self.common)
-        d.settings_saved.connect(self.settings_have_changed)
-        d.exec_()
+        self.tabs.open_settings_tab()
 
     def settings_have_changed(self):
         self.common.log("OnionShareGui", "settings_have_changed")
diff --git a/desktop/src/onionshare/moat_dialog.py b/desktop/src/onionshare/moat_dialog.py
new file mode 100644
index 00000000..84a52390
--- /dev/null
+++ b/desktop/src/onionshare/moat_dialog.py
@@ -0,0 +1,372 @@
+# -*- coding: utf-8 -*-
+"""
+OnionShare | https://onionshare.org/
+
+Copyright (C) 2014-2021 Micah Lee, et al. <micah@micahflee.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+from PySide2 import QtCore, QtWidgets, QtGui
+import requests
+import os
+import base64
+import json
+
+from . import strings
+from .gui_common import GuiCommon
+from onionshare_cli.meek import MeekNotFound, MeekNotRunning
+
+
+class MoatDialog(QtWidgets.QDialog):
+    """
+    Moat dialog: Request a bridge from torproject.org
+    """
+
+    got_bridges = QtCore.Signal(str)
+
+    def __init__(self, common, meek):
+        super(MoatDialog, self).__init__()
+
+        self.common = common
+
+        self.common.log("MoatDialog", "__init__")
+
+        self.meek = meek
+
+        self.setModal(True)
+        self.setWindowTitle(strings._("gui_settings_bridge_moat_button"))
+        self.setWindowIcon(QtGui.QIcon(GuiCommon.get_resource_path("images/logo.png")))
+
+        # Label
+        self.label = QtWidgets.QLabel()
+
+        # CAPTCHA image
+        self.captcha = QtWidgets.QLabel()
+        self.captcha.setFixedSize(400, 125)  # this is the size of the CAPTCHA image
+
+        # Solution input
+        self.solution_lineedit = QtWidgets.QLineEdit()
+        self.solution_lineedit.setPlaceholderText(strings._("moat_captcha_placeholder"))
+        self.solution_lineedit.editingFinished.connect(
+            self.solution_lineedit_editing_finished
+        )
+        self.submit_button = QtWidgets.QPushButton(strings._("moat_captcha_submit"))
+        self.submit_button.clicked.connect(self.submit_clicked)
+        solution_layout = QtWidgets.QHBoxLayout()
+        solution_layout.addWidget(self.solution_lineedit)
+        solution_layout.addWidget(self.submit_button)
+
+        # Error label
+        self.error_label = QtWidgets.QLabel()
+        self.error_label.setStyleSheet(self.common.gui.css["tor_settings_error"])
+        self.error_label.hide()
+
+        # Buttons
+        self.reload_button = QtWidgets.QPushButton(strings._("moat_captcha_reload"))
+        self.reload_button.clicked.connect(self.reload_clicked)
+        self.cancel_button = QtWidgets.QPushButton(
+            strings._("gui_settings_button_cancel")
+        )
+        self.cancel_button.clicked.connect(self.cancel_clicked)
+        buttons_layout = QtWidgets.QHBoxLayout()
+        buttons_layout.addStretch()
+        buttons_layout.addWidget(self.reload_button)
+        buttons_layout.addWidget(self.cancel_button)
+
+        # Layout
+        layout = QtWidgets.QVBoxLayout()
+        layout.addWidget(self.label)
+        layout.addWidget(self.captcha)
+        layout.addLayout(solution_layout)
+        layout.addStretch()
+        layout.addWidget(self.error_label)
+        layout.addLayout(buttons_layout)
+
+        self.setLayout(layout)
+        self.cancel_button.setFocus()
+
+        self.reload_clicked()
+
+    def reload_clicked(self):
+        """
+        Reload button clicked.
+        """
+        self.common.log("MoatDialog", "reload_clicked")
+
+        self.label.setText(strings._("moat_contact_label"))
+        self.error_label.hide()
+
+        self.captcha.hide()
+        self.solution_lineedit.hide()
+        self.reload_button.hide()
+        self.submit_button.hide()
+
+        # BridgeDB fetch
+        self.t_fetch = MoatThread(self.common, self.meek, "fetch")
+        self.t_fetch.bridgedb_error.connect(self.bridgedb_error)
+        self.t_fetch.captcha_ready.connect(self.captcha_ready)
+        self.t_fetch.start()
+
+    def submit_clicked(self):
+        """
+        Submit button clicked.
+        """
+        self.error_label.hide()
+        self.solution_lineedit.setEnabled(False)
+
+        solution = self.solution_lineedit.text().strip()
+        if len(solution) == 0:
+            self.common.log("MoatDialog", "submit_clicked", "solution is blank")
+            self.error_label.setText(strings._("moat_solution_empty_error"))
+            self.error_label.show()
+            return
+
+        # BridgeDB check
+        self.t_check = MoatThread(
+            self.common,
+            self.meek,
+            "check",
+            {
+                "transport": self.transport,
+                "challenge": self.challenge,
+                "solution": self.solution_lineedit.text(),
+            },
+        )
+        self.t_check.bridgedb_error.connect(self.bridgedb_error)
+        self.t_check.captcha_error.connect(self.captcha_error)
+        self.t_check.bridges_ready.connect(self.bridges_ready)
+        self.t_check.start()
+
+    def cancel_clicked(self):
+        """
+        Cancel button clicked.
+        """
+        self.common.log("MoatDialog", "cancel_clicked")
+        self.close()
+
+    def bridgedb_error(self):
+        self.common.log("MoatDialog", "bridgedb_error")
+        self.error_label.setText(strings._("moat_bridgedb_error"))
+        self.error_label.show()
+
+        self.solution_lineedit.setEnabled(True)
+
+    def captcha_error(self, msg):
+        self.common.log("MoatDialog", "captcha_error")
+        if msg == "":
+            self.error_label.setText(strings._("moat_captcha_error"))
+        else:
+            self.error_label.setText(msg)
+        self.error_label.show()
+
+        self.solution_lineedit.setEnabled(True)
+
+    def captcha_ready(self, transport, image, challenge):
+        self.common.log("MoatDialog", "captcha_ready")
+
+        self.transport = transport
+        self.challenge = challenge
+
+        # Save captcha image to disk, so we can load it
+        captcha_data = base64.b64decode(image)
+        captcha_filename = os.path.join(self.common.build_tmp_dir(), "captcha.jpg")
+        with open(captcha_filename, "wb") as f:
+            f.write(captcha_data)
+
+        self.captcha.setPixmap(QtGui.QPixmap.fromImage(QtGui.QImage(captcha_filename)))
+        os.remove(captcha_filename)
+
+        self.label.setText(strings._("moat_captcha_label"))
+        self.captcha.show()
+        self.solution_lineedit.setEnabled(True)
+        self.solution_lineedit.setText("")
+        self.solution_lineedit.show()
+        self.solution_lineedit.setFocus()
+        self.reload_button.show()
+        self.submit_button.show()
+
+    def solution_lineedit_editing_finished(self):
+        self.common.log("MoatDialog", "solution_lineedit_editing_finished")
+
+    def bridges_ready(self, bridges):
+        self.common.log("MoatDialog", "bridges_ready", bridges)
+        self.got_bridges.emit(bridges)
+        self.close()
+
+
+class MoatThread(QtCore.QThread):
+    """
+    This does all of the communicating with BridgeDB in a separate thread.
+
+    Valid actions are:
+    - "fetch": requests a new CAPTCHA
+    - "check": sends a CAPTCHA solution
+
+    """
+
+    bridgedb_error = QtCore.Signal()
+    captcha_error = QtCore.Signal(str)
+    captcha_ready = QtCore.Signal(str, str, str)
+    bridges_ready = QtCore.Signal(str)
+
+    def __init__(self, common, meek, action, data={}):
+        super(MoatThread, self).__init__()
+        self.common = common
+        self.common.log("MoatThread", "__init__", f"action={action}")
+
+        self.meek = meek
+        self.transport = "obfs4"
+        self.action = action
+        self.data = data
+
+    def run(self):
+
+        # Start Meek so that we can do domain fronting
+        try:
+            self.meek.start()
+        except MeekNotFound:
+            self.common.log("MoatThread", "run", f"Could not find meek-client")
+            self.bridgedb_error.emit()
+            return
+        except MeekNotRunning:
+            self.common.log(
+                "MoatThread", "run", f"Ran meek-client, but there was an error"
+            )
+            self.bridgedb_error.emit()
+            return
+
+        # We should only fetch bridges if we can domain front,
+        # but we can override this in local-only mode.
+        if not self.meek.meek_proxies and not self.common.gui.local_only:
+            self.common.log(
+                "MoatThread", "run", f"Could not identify meek proxies to make request"
+            )
+            self.bridgedb_error.emit()
+            return
+
+        if self.action == "fetch":
+            self.common.log("MoatThread", "run", f"starting fetch")
+
+            # Request a bridge
+            r = requests.post(
+                "https://bridges.torproject.org/moat/fetch",
+                headers={"Content-Type": "application/vnd.api+json"},
+                proxies=self.meek.meek_proxies,
+                json={
+                    "data": [
+                        {
+                            "version": "0.1.0",
+                            "type": "client-transports",
+                            "supported": ["obfs4", "snowflake"],
+                        }
+                    ]
+                },
+            )
+
+            self.meek.cleanup()
+
+            if r.status_code != 200:
+                self.common.log("MoatThread", "run", f"status_code={r.status_code}")
+                self.bridgedb_error.emit()
+                return
+
+            try:
+                moat_res = r.json()
+                if "errors" in moat_res:
+                    self.common.log("MoatThread", "run", f"errors={moat_res['errors']}")
+                    self.bridgedb_error.emit()
+                    return
+                if "data" not in moat_res:
+                    self.common.log("MoatThread", "run", f"no data")
+                    self.bridgedb_error.emit()
+                    return
+                if moat_res["data"][0]["type"] != "moat-challenge":
+                    self.common.log("MoatThread", "run", f"type != moat-challange")
+                    self.bridgedb_error.emit()
+                    return
+
+                transport = moat_res["data"][0]["transport"]
+                image = moat_res["data"][0]["image"]
+                challenge = moat_res["data"][0]["challenge"]
+
+                self.captcha_ready.emit(transport, image, challenge)
+            except Exception as e:
+                self.common.log("MoatThread", "run", f"hit exception: {e}")
+                self.bridgedb_error.emit()
+                return
+
+        elif self.action == "check":
+            self.common.log("MoatThread", "run", f"starting check")
+
+            # Check the CAPTCHA
+            r = requests.post(
+                "https://bridges.torproject.org/moat/check",
+                headers={"Content-Type": "application/vnd.api+json"},
+                proxies=self.meek.meek_proxies,
+                json={
+                    "data": [
+                        {
+                            "id": "2",
+                            "type": "moat-solution",
+                            "version": "0.1.0",
+                            "transport": self.data["transport"],
+                            "challenge": self.data["challenge"],
+                            "solution": self.data["solution"],
+                            "qrcode": "false",
+                        }
+                    ]
+                },
+            )
+
+            self.meek.cleanup()
+
+            if r.status_code != 200:
+                self.common.log("MoatThread", "run", f"status_code={r.status_code}")
+                self.bridgedb_error.emit()
+                return
+
+            try:
+                moat_res = r.json()
+                self.common.log(
+                    "MoatThread",
+                    "run",
+                    f"got bridges:\n{json.dumps(moat_res,indent=2)}",
+                )
+
+                if "errors" in moat_res:
+                    self.common.log("MoatThread", "run", f"errors={moat_res['errors']}")
+                    if moat_res["errors"][0]["code"] == 419:
+                        self.captcha_error.emit("")
+                        return
+                    else:
+                        errors = " ".join([e["detail"] for e in moat_res["errors"]])
+                        self.captcha_error.emit(errors)
+                        return
+
+                if moat_res["data"][0]["type"] != "moat-bridges":
+                    self.common.log("MoatThread", "run", f"type != moat-bridges")
+                    self.bridgedb_error.emit()
+                    return
+
+                bridges = moat_res["data"][0]["bridges"]
+                self.bridges_ready.emit("\n".join(bridges))
+
+            except Exception as e:
+                self.common.log("MoatThread", "run", f"hit exception: {e}")
+                self.bridgedb_error.emit()
+                return
+
+        else:
+            self.common.log("MoatThread", "run", f"invalid action: {self.action}")
diff --git a/desktop/src/onionshare/resources/images/dark_tor_settings.png b/desktop/src/onionshare/resources/images/dark_tor_settings.png
new file mode 100644
index 00000000..0b44bd95
--- /dev/null
+++ b/desktop/src/onionshare/resources/images/dark_tor_settings.png
diff --git a/desktop/src/onionshare/resources/images/light_tor_settings.png b/desktop/src/onionshare/resources/images/light_tor_settings.png
new file mode 100644
index 00000000..e8db08eb
--- /dev/null
+++ b/desktop/src/onionshare/resources/images/light_tor_settings.png
diff --git a/desktop/src/onionshare/resources/locale/en.json b/desktop/src/onionshare/resources/locale/en.json
index 437a3eda..db5fbfe5 100644
--- a/desktop/src/onionshare/resources/locale/en.json
+++ b/desktop/src/onionshare/resources/locale/en.json
@@ -40,6 +40,7 @@
     "gui_please_wait_no_button": "Starting…",
     "gui_please_wait": "Starting… Click to cancel.",
     "zip_progress_bar_format": "Compressing: %p%",
+    "gui_tor_settings_window_title": "Tor Settings",
     "gui_settings_window_title": "Settings",
     "gui_settings_autoupdate_label": "Check for new version",
     "gui_settings_autoupdate_option": "Notify me when a new version is available",
@@ -49,29 +50,34 @@
     "gui_settings_connection_type_label": "How should OnionShare connect to Tor?",
     "gui_settings_connection_type_bundled_option": "Use the Tor version built into OnionShare",
     "gui_settings_connection_type_automatic_option": "Attempt auto-configuration with Tor Browser",
+    "gui_settings_controller_extras_label": "Tor settings",
     "gui_settings_connection_type_control_port_option": "Connect using control port",
     "gui_settings_connection_type_socket_file_option": "Connect using socket file",
     "gui_settings_connection_type_test_button": "Test Connection to Tor",
     "gui_settings_control_port_label": "Control port",
     "gui_settings_socket_file_label": "Socket file",
     "gui_settings_socks_label": "SOCKS port",
-    "gui_settings_authenticate_label": "Tor authentication settings",
     "gui_settings_authenticate_no_auth_option": "No authentication, or cookie authentication",
     "gui_settings_authenticate_password_option": "Password",
     "gui_settings_password_label": "Password",
-    "gui_settings_tor_bridges": "Tor bridge support",
-    "gui_settings_tor_bridges_no_bridges_radio_option": "Don't use bridges",
-    "gui_settings_tor_bridges_obfs4_radio_option": "Use built-in obfs4 pluggable transports",
-    "gui_settings_tor_bridges_obfs4_radio_option_no_obfs4proxy": "Use built-in obfs4 pluggable transports (requires obfs4proxy)",
-    "gui_settings_tor_bridges_meek_lite_azure_radio_option": "Use built-in meek_lite (Azure) pluggable transports",
-    "gui_settings_tor_bridges_meek_lite_azure_radio_option_no_obfs4proxy": "Use built-in meek_lite (Azure) pluggable transports (requires obfs4proxy)",
-    "gui_settings_meek_lite_expensive_warning": "Warning: The meek_lite bridges are very costly for the Tor Project to run.<br><br>Only use them if unable to connect to Tor directly, via obfs4 transports, or other normal bridges.",
-    "gui_settings_tor_bridges_custom_radio_option": "Use custom bridges",
-    "gui_settings_tor_bridges_custom_label": "You can get bridges from <a href=\"https://bridges.torproject.org/options\">https://bridges.torproject.org</a>",
-    "gui_settings_tor_bridges_invalid": "None of the bridges you added work.\nDouble-check them or add others.",
+    "gui_settings_tor_bridges": "Connect using a Tor bridge?",
+    "gui_settings_tor_bridges_label": "Bridges help you access the Tor Network in places where Tor is blocked. Depending on where you are, one bridge may work better than another.",
+    "gui_settings_bridge_use_checkbox": "Use a bridge",
+    "gui_settings_bridge_radio_builtin": "Select a built-in bridge",
+    "gui_settings_bridge_none_radio_option": "Don't use a bridge",
+    "gui_settings_meek_lite_expensive_warning": "Warning: The meek-azure bridges are very costly for the Tor Project to run.<br><br>Only use them if unable to connect to Tor directly, via obfs4 transports, or other normal bridges.",
+    "gui_settings_bridge_moat_radio_option": "Request a bridge from torproject.org",
+    "gui_settings_bridge_moat_button": "Request a New Bridge",
+    "gui_settings_bridge_custom_radio_option": "Provide a bridge you learned about from a trusted source",
+    "gui_settings_bridge_custom_placeholder": "type address:port (one per line)",
+    "gui_settings_moat_bridges_invalid": "You have not requested a bridge from torproject.org yet.",
+    "gui_settings_tor_bridges_invalid": "None of the bridges you added work. Double-check them or add others.",
+    "gui_settings_stop_active_tabs_label": "There are services running in some of your tabs.\nYou must stop all services to change your Tor settings.",
     "gui_settings_button_save": "Save",
     "gui_settings_button_cancel": "Cancel",
     "gui_settings_button_help": "Help",
+    "gui_settings_version_label": "You are using OnionShare {}",
+    "gui_settings_help_label": "Need help? See <a href='https://docs.onionshare.org'>docs.onionshare.org</a>",
     "settings_test_success": "Connected to the Tor controller.\n\nTor version: {}\nSupports ephemeral onion services: {}.\nSupports client authentication: {}.\nSupports next-gen .onion addresses: {}.",
     "connecting_to_tor": "Connecting to the Tor network",
     "update_available": "New OnionShare out. <a href='{}'>Click here</a> to get it.<br><br>You are using {} and the latest is {}.",
@@ -125,7 +131,7 @@
     "error_cannot_create_data_dir": "Could not create OnionShare data folder: {}",
     "gui_receive_mode_warning": "Receive mode lets people upload files to your computer.<br><br><b>Some files can potentially take control of your computer if you open them. Only open things from people you trust, or if you know what you are doing.</b>",
     "gui_open_folder_error": "Failed to open folder with xdg-open. The file is here: {}",
-    "gui_settings_language_label": "Preferred language",
+    "gui_settings_language_label": "Language",
     "gui_settings_theme_label": "Theme",
     "gui_settings_theme_auto": "Auto",
     "gui_settings_theme_light": "Light",
@@ -197,7 +203,7 @@
     "mode_settings_receive_disable_files_checkbox": "Disable uploading files",
     "mode_settings_receive_webhook_url_checkbox": "Use notification webhook",
     "mode_settings_website_disable_csp_checkbox": "Don't send default Content Security Policy header (allows your website to use third-party resources)",
-    "mode_settings_website_custom_csp_checkbox": "Send a Custom Content Security Policy header",
+    "mode_settings_website_custom_csp_checkbox": "Send a custom Content Security Policy header",
     "gui_all_modes_transfer_finished_range": "Transferred {} - {}",
     "gui_all_modes_transfer_finished": "Transferred {}",
     "gui_all_modes_transfer_canceled_range": "Canceled {} - {}",
@@ -216,5 +222,14 @@
     "gui_rendezvous_cleanup_quit_early": "Quit Early",
     "error_port_not_available": "OnionShare port not available",
     "history_receive_read_message_button": "Read Message",
-    "error_tor_protocol_error": "There was an error with Tor: {}"
+    "error_tor_protocol_error": "There was an error with Tor: {}",
+    "moat_contact_label": "Contacting BridgeDB...",
+    "moat_captcha_label": "Solve the CAPTCHA to request a bridge.",
+    "moat_captcha_placeholder": "Enter the characters from the image",
+    "moat_captcha_submit": "Submit",
+    "moat_captcha_reload": "Reload",
+    "moat_bridgedb_error": "Error contacting BridgeDB.",
+    "moat_captcha_error": "The solution is not correct. Please try again.",
+    "moat_solution_empty_error": "You must enter the characters from the image",
+    "mode_tor_not_connected_label": "OnionShare is not connected to the Tor network"
 }
diff --git a/desktop/src/onionshare/settings_dialog.py b/desktop/src/onionshare/settings_dialog.py
deleted file mode 100644
index e8d2752c..00000000
--- a/desktop/src/onionshare/settings_dialog.py
+++ /dev/null
@@ -1,1114 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-OnionShare | https://onionshare.org/
-
-Copyright (C) 2014-2021 Micah Lee, et al. <micah@micahflee.com>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-"""
-
-from PySide2 import QtCore, QtWidgets, QtGui
-from PySide2.QtCore import Slot,Qt
-from PySide2.QtGui import QPalette, QColor
-import sys
-import platform
-import datetime
-import re
-import os
-from onionshare_cli.settings import Settings
-from onionshare_cli.onion import (
-    Onion,
-    TorErrorInvalidSetting,
-    TorErrorAutomatic,
-    TorErrorSocketPort,
-    TorErrorSocketFile,
-    TorErrorMissingPassword,
-    TorErrorUnreadableCookieFile,
-    TorErrorAuthError,
-    TorErrorProtocolError,
-    BundledTorTimeout,
-    BundledTorBroken,
-    TorTooOldEphemeral,
-    TorTooOldStealth,
-    PortNotAvailable,
-)
-
-from . import strings
-from .widgets import Alert
-from .update_checker import (
-    UpdateThread)
-from .tor_connection_dialog import TorConnectionDialog
-from .gui_common import GuiCommon
-
-
-class SettingsDialog(QtWidgets.QDialog):
-    """
-    Settings dialog.
-    """
-
-    settings_saved = QtCore.Signal()
-
-    def __init__(self, common):
-        super(SettingsDialog, self).__init__()
-
-        self.common = common
-
-        self.common.log("SettingsDialog", "__init__")
-
-        self.setModal(True)
-        self.setWindowTitle(strings._("gui_settings_window_title"))
-        self.setWindowIcon(QtGui.QIcon(GuiCommon.get_resource_path("images/logo.png")))
-
-        self.system = platform.system()
-
-        # If ONIONSHARE_HIDE_TOR_SETTINGS=1, hide Tor settings in the dialog
-        self.hide_tor_settings = os.environ.get("ONIONSHARE_HIDE_TOR_SETTINGS") == "1"
-
-        # Automatic updates options
-
-        # Autoupdate
-        self.autoupdate_checkbox = QtWidgets.QCheckBox()
-        self.autoupdate_checkbox.setCheckState(QtCore.Qt.Unchecked)
-        self.autoupdate_checkbox.setText(strings._("gui_settings_autoupdate_option"))
-
-        # Last update time
-        self.autoupdate_timestamp = QtWidgets.QLabel()
-
-        # Check for updates button
-        self.check_for_updates_button = QtWidgets.QPushButton(
-            strings._("gui_settings_autoupdate_check_button")
-        )
-        self.check_for_updates_button.clicked.connect(self.check_for_updates)
-        # We can't check for updates if not connected to Tor
-        if not self.common.gui.onion.connected_to_tor:
-            self.check_for_updates_button.setEnabled(False)
-
-        # Autoupdate options layout
-        autoupdate_group_layout = QtWidgets.QVBoxLayout()
-        autoupdate_group_layout.addWidget(self.autoupdate_checkbox)
-        autoupdate_group_layout.addWidget(self.autoupdate_timestamp)
-        autoupdate_group_layout.addWidget(self.check_for_updates_button)
-        autoupdate_group = QtWidgets.QGroupBox(
-            strings._("gui_settings_autoupdate_label")
-        )
-        autoupdate_group.setLayout(autoupdate_group_layout)
-
-        # Autoupdate is only available for Windows and Mac (Linux updates using package manager)
-        if self.system != "Windows" and self.system != "Darwin":
-            autoupdate_group.hide()
-
-        # Language settings
-        language_label = QtWidgets.QLabel(strings._("gui_settings_language_label"))
-        self.language_combobox = QtWidgets.QComboBox()
-        # Populate the dropdown with all of OnionShare's available languages
-        language_names_to_locales = {
-            v: k for k, v in self.common.settings.available_locales.items()
-        }
-        language_names = list(language_names_to_locales)
-        language_names.sort()
-        for language_name in language_names:
-            locale = language_names_to_locales[language_name]
-            self.language_combobox.addItem(language_name, locale)
-        language_layout = QtWidgets.QHBoxLayout()
-        language_layout.addWidget(language_label)
-        language_layout.addWidget(self.language_combobox)
-        language_layout.addStretch()
-
-        #Theme Settings
-        theme_label = QtWidgets.QLabel(strings._("gui_settings_theme_label"))
-        self.theme_combobox = QtWidgets.QComboBox()
-        theme_choices = [
-            strings._("gui_settings_theme_auto"),
-            strings._("gui_settings_theme_light"),
-            strings._("gui_settings_theme_dark")
-        ]
-        self.theme_combobox.addItems(theme_choices)
-        theme_layout = QtWidgets.QHBoxLayout()
-        theme_layout.addWidget(theme_label)
-        theme_layout.addWidget(self.theme_combobox)
-        theme_layout.addStretch()
-
-        # Connection type: either automatic, control port, or socket file
-
-        # Bundled Tor
-        self.connection_type_bundled_radio = QtWidgets.QRadioButton(
-            strings._("gui_settings_connection_type_bundled_option")
-        )
-        self.connection_type_bundled_radio.toggled.connect(
-            self.connection_type_bundled_toggled
-        )
-
-        # Bundled Tor doesn't work on dev mode in Windows or Mac
-        if (self.system == "Windows" or self.system == "Darwin") and getattr(
-            sys, "onionshare_dev_mode", False
-        ):
-            self.connection_type_bundled_radio.setEnabled(False)
-
-        # Bridge options for bundled tor
-
-        # No bridges option radio
-        self.tor_bridges_no_bridges_radio = QtWidgets.QRadioButton(
-            strings._("gui_settings_tor_bridges_no_bridges_radio_option")
-        )
-        self.tor_bridges_no_bridges_radio.toggled.connect(
-            self.tor_bridges_no_bridges_radio_toggled
-        )
-
-        # obfs4 option radio
-        # if the obfs4proxy binary is missing, we can't use obfs4 transports
-        (
-            self.tor_path,
-            self.tor_geo_ip_file_path,
-            self.tor_geo_ipv6_file_path,
-            self.obfs4proxy_file_path,
-        ) = self.common.gui.get_tor_paths()
-        if not self.obfs4proxy_file_path or not os.path.isfile(
-            self.obfs4proxy_file_path
-        ):
-            self.tor_bridges_use_obfs4_radio = QtWidgets.QRadioButton(
-                strings._("gui_settings_tor_bridges_obfs4_radio_option_no_obfs4proxy")
-            )
-            self.tor_bridges_use_obfs4_radio.setEnabled(False)
-        else:
-            self.tor_bridges_use_obfs4_radio = QtWidgets.QRadioButton(
-                strings._("gui_settings_tor_bridges_obfs4_radio_option")
-            )
-        self.tor_bridges_use_obfs4_radio.toggled.connect(
-            self.tor_bridges_use_obfs4_radio_toggled
-        )
-
-        # meek_lite-azure option radio
-        # if the obfs4proxy binary is missing, we can't use meek_lite-azure transports
-        (
-            self.tor_path,
-            self.tor_geo_ip_file_path,
-            self.tor_geo_ipv6_file_path,
-            self.obfs4proxy_file_path,
-        ) = self.common.gui.get_tor_paths()
-        if not self.obfs4proxy_file_path or not os.path.isfile(
-            self.obfs4proxy_file_path
-        ):
-            self.tor_bridges_use_meek_lite_azure_radio = QtWidgets.QRadioButton(
-                strings._(
-                    "gui_settings_tor_bridges_meek_lite_azure_radio_option_no_obfs4proxy"
-                )
-            )
-            self.tor_bridges_use_meek_lite_azure_radio.setEnabled(False)
-        else:
-            self.tor_bridges_use_meek_lite_azure_radio = QtWidgets.QRadioButton(
-                strings._("gui_settings_tor_bridges_meek_lite_azure_radio_option")
-            )
-        self.tor_bridges_use_meek_lite_azure_radio.toggled.connect(
-            self.tor_bridges_use_meek_lite_azure_radio_toggled
-        )
-
-        # Custom bridges radio and textbox
-        self.tor_bridges_use_custom_radio = QtWidgets.QRadioButton(
-            strings._("gui_settings_tor_bridges_custom_radio_option")
-        )
-        self.tor_bridges_use_custom_radio.toggled.connect(
-            self.tor_bridges_use_custom_radio_toggled
-        )
-
-        self.tor_bridges_use_custom_label = QtWidgets.QLabel(
-            strings._("gui_settings_tor_bridges_custom_label")
-        )
-        self.tor_bridges_use_custom_label.setTextInteractionFlags(
-            QtCore.Qt.TextBrowserInteraction
-        )
-        self.tor_bridges_use_custom_label.setOpenExternalLinks(True)
-        self.tor_bridges_use_custom_textbox = QtWidgets.QPlainTextEdit()
-        self.tor_bridges_use_custom_textbox.setMaximumHeight(200)
-        self.tor_bridges_use_custom_textbox.setPlaceholderText(
-            "[address:port] [identifier]"
-        )
-
-        tor_bridges_use_custom_textbox_options_layout = QtWidgets.QVBoxLayout()
-        tor_bridges_use_custom_textbox_options_layout.addWidget(
-            self.tor_bridges_use_custom_label
-        )
-        tor_bridges_use_custom_textbox_options_layout.addWidget(
-            self.tor_bridges_use_custom_textbox
-        )
-
-        self.tor_bridges_use_custom_textbox_options = QtWidgets.QWidget()
-        self.tor_bridges_use_custom_textbox_options.setLayout(
-            tor_bridges_use_custom_textbox_options_layout
-        )
-        self.tor_bridges_use_custom_textbox_options.hide()
-
-        # Bridges layout/widget
-        bridges_layout = QtWidgets.QVBoxLayout()
-        bridges_layout.addWidget(self.tor_bridges_no_bridges_radio)
-        bridges_layout.addWidget(self.tor_bridges_use_obfs4_radio)
-        bridges_layout.addWidget(self.tor_bridges_use_meek_lite_azure_radio)
-        bridges_layout.addWidget(self.tor_bridges_use_custom_radio)
-        bridges_layout.addWidget(self.tor_bridges_use_custom_textbox_options)
-
-        self.bridges = QtWidgets.QWidget()
-        self.bridges.setLayout(bridges_layout)
-
-        # Automatic
-        self.connection_type_automatic_radio = QtWidgets.QRadioButton(
-            strings._("gui_settings_connection_type_automatic_option")
-        )
-        self.connection_type_automatic_radio.toggled.connect(
-            self.connection_type_automatic_toggled
-        )
-
-        # Control port
-        self.connection_type_control_port_radio = QtWidgets.QRadioButton(
-            strings._("gui_settings_connection_type_control_port_option")
-        )
-        self.connection_type_control_port_radio.toggled.connect(
-            self.connection_type_control_port_toggled
-        )
-
-        connection_type_control_port_extras_label = QtWidgets.QLabel(
-            strings._("gui_settings_control_port_label")
-        )
-        self.connection_type_control_port_extras_address = QtWidgets.QLineEdit()
-        self.connection_type_control_port_extras_port = QtWidgets.QLineEdit()
-        connection_type_control_port_extras_layout = QtWidgets.QHBoxLayout()
-        connection_type_control_port_extras_layout.addWidget(
-            connection_type_control_port_extras_label
-        )
-        connection_type_control_port_extras_layout.addWidget(
-            self.connection_type_control_port_extras_address
-        )
-        connection_type_control_port_extras_layout.addWidget(
-            self.connection_type_control_port_extras_port
-        )
-
-        self.connection_type_control_port_extras = QtWidgets.QWidget()
-        self.connection_type_control_port_extras.setLayout(
-            connection_type_control_port_extras_layout
-        )
-        self.connection_type_control_port_extras.hide()
-
-        # Socket file
-        self.connection_type_socket_file_radio = QtWidgets.QRadioButton(
-            strings._("gui_settings_connection_type_socket_file_option")
-        )
-        self.connection_type_socket_file_radio.toggled.connect(
-            self.connection_type_socket_file_toggled
-        )
-
-        connection_type_socket_file_extras_label = QtWidgets.QLabel(
-            strings._("gui_settings_socket_file_label")
-        )
-        self.connection_type_socket_file_extras_path = QtWidgets.QLineEdit()
-        connection_type_socket_file_extras_layout = QtWidgets.QHBoxLayout()
-        connection_type_socket_file_extras_layout.addWidget(
-            connection_type_socket_file_extras_label
-        )
-        connection_type_socket_file_extras_layout.addWidget(
-            self.connection_type_socket_file_extras_path
-        )
-
-        self.connection_type_socket_file_extras = QtWidgets.QWidget()
-        self.connection_type_socket_file_extras.setLayout(
-            connection_type_socket_file_extras_layout
-        )
-        self.connection_type_socket_file_extras.hide()
-
-        # Tor SOCKS address and port
-        gui_settings_socks_label = QtWidgets.QLabel(
-            strings._("gui_settings_socks_label")
-        )
-        self.connection_type_socks_address = QtWidgets.QLineEdit()
-        self.connection_type_socks_port = QtWidgets.QLineEdit()
-        connection_type_socks_layout = QtWidgets.QHBoxLayout()
-        connection_type_socks_layout.addWidget(gui_settings_socks_label)
-        connection_type_socks_layout.addWidget(self.connection_type_socks_address)
-        connection_type_socks_layout.addWidget(self.connection_type_socks_port)
-
-        self.connection_type_socks = QtWidgets.QWidget()
-        self.connection_type_socks.setLayout(connection_type_socks_layout)
-        self.connection_type_socks.hide()
-
-        # Authentication options
-
-        # No authentication
-        self.authenticate_no_auth_radio = QtWidgets.QRadioButton(
-            strings._("gui_settings_authenticate_no_auth_option")
-        )
-        self.authenticate_no_auth_radio.toggled.connect(
-            self.authenticate_no_auth_toggled
-        )
-
-        # Password
-        self.authenticate_password_radio = QtWidgets.QRadioButton(
-            strings._("gui_settings_authenticate_password_option")
-        )
-        self.authenticate_password_radio.toggled.connect(
-            self.authenticate_password_toggled
-        )
-
-        authenticate_password_extras_label = QtWidgets.QLabel(
-            strings._("gui_settings_password_label")
-        )
-        self.authenticate_password_extras_password = QtWidgets.QLineEdit("")
-        authenticate_password_extras_layout = QtWidgets.QHBoxLayout()
-        authenticate_password_extras_layout.addWidget(
-            authenticate_password_extras_label
-        )
-        authenticate_password_extras_layout.addWidget(
-            self.authenticate_password_extras_password
-        )
-
-        self.authenticate_password_extras = QtWidgets.QWidget()
-        self.authenticate_password_extras.setLayout(authenticate_password_extras_layout)
-        self.authenticate_password_extras.hide()
-
-        # Authentication options layout
-        authenticate_group_layout = QtWidgets.QVBoxLayout()
-        authenticate_group_layout.addWidget(self.authenticate_no_auth_radio)
-        authenticate_group_layout.addWidget(self.authenticate_password_radio)
-        authenticate_group_layout.addWidget(self.authenticate_password_extras)
-        self.authenticate_group = QtWidgets.QGroupBox(
-            strings._("gui_settings_authenticate_label")
-        )
-        self.authenticate_group.setLayout(authenticate_group_layout)
-
-        # Put the radios into their own group so they are exclusive
-        connection_type_radio_group_layout = QtWidgets.QVBoxLayout()
-        connection_type_radio_group_layout.addWidget(self.connection_type_bundled_radio)
-        connection_type_radio_group_layout.addWidget(
-            self.connection_type_automatic_radio
-        )
-        connection_type_radio_group_layout.addWidget(
-            self.connection_type_control_port_radio
-        )
-        connection_type_radio_group_layout.addWidget(
-            self.connection_type_socket_file_radio
-        )
-        connection_type_radio_group = QtWidgets.QGroupBox(
-            strings._("gui_settings_connection_type_label")
-        )
-        connection_type_radio_group.setLayout(connection_type_radio_group_layout)
-
-        # The Bridges options are not exclusive (enabling Bridges offers obfs4 or custom bridges)
-        connection_type_bridges_radio_group_layout = QtWidgets.QVBoxLayout()
-        connection_type_bridges_radio_group_layout.addWidget(self.bridges)
-        self.connection_type_bridges_radio_group = QtWidgets.QGroupBox(
-            strings._("gui_settings_tor_bridges")
-        )
-        self.connection_type_bridges_radio_group.setLayout(
-            connection_type_bridges_radio_group_layout
-        )
-        self.connection_type_bridges_radio_group.hide()
-
-        # Test tor settings button
-        self.connection_type_test_button = QtWidgets.QPushButton(
-            strings._("gui_settings_connection_type_test_button")
-        )
-        self.connection_type_test_button.clicked.connect(self.test_tor_clicked)
-        connection_type_test_button_layout = QtWidgets.QHBoxLayout()
-        connection_type_test_button_layout.addWidget(self.connection_type_test_button)
-        connection_type_test_button_layout.addStretch()
-
-        # Connection type layout
-        connection_type_layout = QtWidgets.QVBoxLayout()
-        connection_type_layout.addWidget(self.connection_type_control_port_extras)
-        connection_type_layout.addWidget(self.connection_type_socket_file_extras)
-        connection_type_layout.addWidget(self.connection_type_socks)
-        connection_type_layout.addWidget(self.authenticate_group)
-        connection_type_layout.addWidget(self.connection_type_bridges_radio_group)
-        connection_type_layout.addLayout(connection_type_test_button_layout)
-
-        # Buttons
-        self.save_button = QtWidgets.QPushButton(strings._("gui_settings_button_save"))
-        self.save_button.clicked.connect(self.save_clicked)
-        self.cancel_button = QtWidgets.QPushButton(
-            strings._("gui_settings_button_cancel")
-        )
-        self.cancel_button.clicked.connect(self.cancel_clicked)
-        version_label = QtWidgets.QLabel(f"OnionShare {self.common.version}")
-        version_label.setStyleSheet(self.common.gui.css["settings_version"])
-        self.help_button = QtWidgets.QPushButton(strings._("gui_settings_button_help"))
-        self.help_button.clicked.connect(self.help_clicked)
-        buttons_layout = QtWidgets.QHBoxLayout()
-        buttons_layout.addWidget(version_label)
-        buttons_layout.addWidget(self.help_button)
-        buttons_layout.addStretch()
-        buttons_layout.addWidget(self.save_button)
-        buttons_layout.addWidget(self.cancel_button)
-
-        # Tor network connection status
-        self.tor_status = QtWidgets.QLabel()
-        self.tor_status.setStyleSheet(self.common.gui.css["settings_tor_status"])
-        self.tor_status.hide()
-
-        # Layout
-        tor_layout = QtWidgets.QVBoxLayout()
-        tor_layout.addWidget(connection_type_radio_group)
-        tor_layout.addLayout(connection_type_layout)
-        tor_layout.addWidget(self.tor_status)
-        tor_layout.addStretch()
-
-        layout = QtWidgets.QVBoxLayout()
-        if not self.hide_tor_settings:
-            layout.addLayout(tor_layout)
-            layout.addSpacing(20)
-        layout.addWidget(autoupdate_group)
-        if autoupdate_group.isVisible():
-            layout.addSpacing(20)
-        layout.addLayout(language_layout)
-        layout.addSpacing(20)
-        layout.addLayout(theme_layout)
-        layout.addSpacing(20)
-        layout.addStretch()
-        layout.addLayout(buttons_layout)
-
-        self.setLayout(layout)
-        self.cancel_button.setFocus()
-
-        self.reload_settings()
-
-    def reload_settings(self):
-        # Load settings, and fill them in
-        self.old_settings = Settings(self.common)
-        self.old_settings.load()
-
-        use_autoupdate = self.old_settings.get("use_autoupdate")
-        if use_autoupdate:
-            self.autoupdate_checkbox.setCheckState(QtCore.Qt.Checked)
-        else:
-            self.autoupdate_checkbox.setCheckState(QtCore.Qt.Unchecked)
-
-        autoupdate_timestamp = self.old_settings.get("autoupdate_timestamp")
-        self._update_autoupdate_timestamp(autoupdate_timestamp)
-
-        locale = self.old_settings.get("locale")
-        locale_index = self.language_combobox.findData(locale)
-        self.language_combobox.setCurrentIndex(locale_index)
-
-        theme_choice = self.old_settings.get("theme")
-        self.theme_combobox.setCurrentIndex(theme_choice)
-
-        connection_type = self.old_settings.get("connection_type")
-        if connection_type == "bundled":
-            if self.connection_type_bundled_radio.isEnabled():
-                self.connection_type_bundled_radio.setChecked(True)
-            else:
-                # If bundled tor is disabled, fallback to automatic
-                self.connection_type_automatic_radio.setChecked(True)
-        elif connection_type == "automatic":
-            self.connection_type_automatic_radio.setChecked(True)
-        elif connection_type == "control_port":
-            self.connection_type_control_port_radio.setChecked(True)
-        elif connection_type == "socket_file":
-            self.connection_type_socket_file_radio.setChecked(True)
-        self.connection_type_control_port_extras_address.setText(
-            self.old_settings.get("control_port_address")
-        )
-        self.connection_type_control_port_extras_port.setText(
-            str(self.old_settings.get("control_port_port"))
-        )
-        self.connection_type_socket_file_extras_path.setText(
-            self.old_settings.get("socket_file_path")
-        )
-        self.connection_type_socks_address.setText(
-            self.old_settings.get("socks_address")
-        )
-        self.connection_type_socks_port.setText(
-            str(self.old_settings.get("socks_port"))
-        )
-        auth_type = self.old_settings.get("auth_type")
-        if auth_type == "no_auth":
-            self.authenticate_no_auth_radio.setChecked(True)
-        elif auth_type == "password":
-            self.authenticate_password_radio.setChecked(True)
-        self.authenticate_password_extras_password.setText(
-            self.old_settings.get("auth_password")
-        )
-
-        if self.old_settings.get("no_bridges"):
-            self.tor_bridges_no_bridges_radio.setChecked(True)
-            self.tor_bridges_use_obfs4_radio.setChecked(False)
-            self.tor_bridges_use_meek_lite_azure_radio.setChecked(False)
-            self.tor_bridges_use_custom_radio.setChecked(False)
-        else:
-            self.tor_bridges_no_bridges_radio.setChecked(False)
-            self.tor_bridges_use_obfs4_radio.setChecked(
-                self.old_settings.get("tor_bridges_use_obfs4")
-            )
-            self.tor_bridges_use_meek_lite_azure_radio.setChecked(
-                self.old_settings.get("tor_bridges_use_meek_lite_azure")
-            )
-
-            if self.old_settings.get("tor_bridges_use_custom_bridges"):
-                self.tor_bridges_use_custom_radio.setChecked(True)
-                # Remove the 'Bridge' lines at the start of each bridge.
-                # They are added automatically to provide compatibility with
-                # copying/pasting bridges provided from https://bridges.torproject.org
-                new_bridges = []
-                bridges = self.old_settings.get("tor_bridges_use_custom_bridges").split(
-                    "Bridge "
-                )
-                for bridge in bridges:
-                    new_bridges.append(bridge)
-                new_bridges = "".join(new_bridges)
-                self.tor_bridges_use_custom_textbox.setPlainText(new_bridges)
-
-    def connection_type_bundled_toggled(self, checked):
-        """
-        Connection type bundled was toggled. If checked, hide authentication fields.
-        """
-        self.common.log("SettingsDialog", "connection_type_bundled_toggled")
-        if self.hide_tor_settings:
-            return
-        if checked:
-            self.authenticate_group.hide()
-            self.connection_type_socks.hide()
-            self.connection_type_bridges_radio_group.show()
-
-    def tor_bridges_no_bridges_radio_toggled(self, checked):
-        """
-        'No bridges' option was toggled. If checked, enable other bridge options.
-        """
-        if self.hide_tor_settings:
-            return
-        if checked:
-            self.tor_bridges_use_custom_textbox_options.hide()
-
-    def tor_bridges_use_obfs4_radio_toggled(self, checked):
-        """
-        obfs4 bridges option was toggled. If checked, disable custom bridge options.
-        """
-        if self.hide_tor_settings:
-            return
-        if checked:
-            self.tor_bridges_use_custom_textbox_options.hide()
-
-    def tor_bridges_use_meek_lite_azure_radio_toggled(self, checked):
-        """
-        meek_lite_azure bridges option was toggled. If checked, disable custom bridge options.
-        """
-        if self.hide_tor_settings:
-            return
-        if checked:
-            self.tor_bridges_use_custom_textbox_options.hide()
-            # Alert the user about meek's costliness if it looks like they're turning it on
-            if not self.old_settings.get("tor_bridges_use_meek_lite_azure"):
-                Alert(
-                    self.common,
-                    strings._("gui_settings_meek_lite_expensive_warning"),
-                    QtWidgets.QMessageBox.Warning,
-                )
-
-    def tor_bridges_use_custom_radio_toggled(self, checked):
-        """
-        Custom bridges option was toggled. If checked, show custom bridge options.
-        """
-        if self.hide_tor_settings:
-            return
-        if checked:
-            self.tor_bridges_use_custom_textbox_options.show()
-
-    def connection_type_automatic_toggled(self, checked):
-        """
-        Connection type automatic was toggled. If checked, hide authentication fields.
-        """
-        self.common.log("SettingsDialog", "connection_type_automatic_toggled")
-        if self.hide_tor_settings:
-            return
-        if checked:
-            self.authenticate_group.hide()
-            self.connection_type_socks.hide()
-            self.connection_type_bridges_radio_group.hide()
-
-    def connection_type_control_port_toggled(self, checked):
-        """
-        Connection type control port was toggled. If checked, show extra fields
-        for Tor control address and port. If unchecked, hide those extra fields.
-        """
-        self.common.log("SettingsDialog", "connection_type_control_port_toggled")
-        if self.hide_tor_settings:
-            return
-        if checked:
-            self.authenticate_group.show()
-            self.connection_type_control_port_extras.show()
-            self.connection_type_socks.show()
-            self.connection_type_bridges_radio_group.hide()
-        else:
-            self.connection_type_control_port_extras.hide()
-
-    def connection_type_socket_file_toggled(self, checked):
-        """
-        Connection type socket file was toggled. If checked, show extra fields
-        for socket file. If unchecked, hide those extra fields.
-        """
-        self.common.log("SettingsDialog", "connection_type_socket_file_toggled")
-        if self.hide_tor_settings:
-            return
-        if checked:
-            self.authenticate_group.show()
-            self.connection_type_socket_file_extras.show()
-            self.connection_type_socks.show()
-            self.connection_type_bridges_radio_group.hide()
-        else:
-            self.connection_type_socket_file_extras.hide()
-
-    def authenticate_no_auth_toggled(self, checked):
-        """
-        Authentication option no authentication was toggled.
-        """
-        self.common.log("SettingsDialog", "authenticate_no_auth_toggled")
-
-    def authenticate_password_toggled(self, checked):
-        """
-        Authentication option password was toggled. If checked, show extra fields
-        for password auth. If unchecked, hide those extra fields.
-        """
-        self.common.log("SettingsDialog", "authenticate_password_toggled")
-        if checked:
-            self.authenticate_password_extras.show()
-        else:
-            self.authenticate_password_extras.hide()
-
-    def test_tor_clicked(self):
-        """
-        Test Tor Settings button clicked. With the given settings, see if we can
-        successfully connect and authenticate to Tor.
-        """
-        self.common.log("SettingsDialog", "test_tor_clicked")
-        settings = self.settings_from_fields()
-
-        try:
-            # Show Tor connection status if connection type is bundled tor
-            if settings.get("connection_type") == "bundled":
-                self.tor_status.show()
-                self._disable_buttons()
-
-                def tor_status_update_func(progress, summary):
-                    self._tor_status_update(progress, summary)
-                    return True
-
-            else:
-                tor_status_update_func = None
-
-            onion = Onion(
-                self.common,
-                use_tmp_dir=True,
-                get_tor_paths=self.common.gui.get_tor_paths,
-            )
-            onion.connect(
-                custom_settings=settings,
-                tor_status_update_func=tor_status_update_func,
-            )
-
-            # If an exception hasn't been raised yet, the Tor settings work
-            Alert(
-                self.common,
-                strings._("settings_test_success").format(
-                    onion.tor_version,
-                    onion.supports_ephemeral,
-                    onion.supports_stealth,
-                    onion.supports_v3_onions,
-                ),
-            )
-
-            # Clean up
-            onion.cleanup()
-
-        except (
-            TorErrorInvalidSetting,
-            TorErrorAutomatic,
-            TorErrorSocketPort,
-            TorErrorSocketFile,
-            TorErrorMissingPassword,
-            TorErrorUnreadableCookieFile,
-            TorErrorAuthError,
-            TorErrorProtocolError,
-            BundledTorTimeout,
-            BundledTorBroken,
-            TorTooOldEphemeral,
-            TorTooOldStealth,
-            PortNotAvailable,
-        ) as e:
-            message = self.common.gui.get_translated_tor_error(e)
-            Alert(
-                self.common,
-                message,
-                QtWidgets.QMessageBox.Warning,
-            )
-            if settings.get("connection_type") == "bundled":
-                self.tor_status.hide()
-                self._enable_buttons()
-
-    def check_for_updates(self):
-        """
-        Check for Updates button clicked. Manually force an update check.
-        """
-        self.common.log("SettingsDialog", "check_for_updates")
-        # Disable buttons
-        self._disable_buttons()
-        self.common.gui.qtapp.processEvents()
-
-        def update_timestamp():
-            # Update the last checked label
-            settings = Settings(self.common)
-            settings.load()
-            autoupdate_timestamp = settings.get("autoupdate_timestamp")
-            self._update_autoupdate_timestamp(autoupdate_timestamp)
-
-        def close_forced_update_thread():
-            forced_update_thread.quit()
-            # Enable buttons
-            self._enable_buttons()
-            # Update timestamp
-            update_timestamp()
-
-        # Check for updates
-        def update_available(update_url, installed_version, latest_version):
-            Alert(
-                self.common,
-                strings._("update_available").format(
-                    update_url, installed_version, latest_version
-                ),
-            )
-            close_forced_update_thread()
-
-        def update_not_available():
-            Alert(self.common, strings._("update_not_available"))
-            close_forced_update_thread()
-
-        def update_error():
-            Alert(
-                self.common,
-                strings._("update_error_check_error"),
-                QtWidgets.QMessageBox.Warning,
-            )
-            close_forced_update_thread()
-
-        def update_invalid_version(latest_version):
-            Alert(
-                self.common,
-                strings._("update_error_invalid_latest_version").format(latest_version),
-                QtWidgets.QMessageBox.Warning,
-            )
-            close_forced_update_thread()
-
-        forced_update_thread = UpdateThread(self.common, self.common.gui.onion, force=True)
-        forced_update_thread.update_available.connect(update_available)
-        forced_update_thread.update_not_available.connect(update_not_available)
-        forced_update_thread.update_error.connect(update_error)
-        forced_update_thread.update_invalid_version.connect(update_invalid_version)
-        forced_update_thread.start()
-
-    def save_clicked(self):
-        """
-        Save button clicked. Save current settings to disk.
-        """
-        self.common.log("SettingsDialog", "save_clicked")
-
-        def changed(s1, s2, keys):
-            """
-            Compare the Settings objects s1 and s2 and return true if any values
-            have changed for the given keys.
-            """
-            for key in keys:
-                if s1.get(key) != s2.get(key):
-                    return True
-            return False
-
-        settings = self.settings_from_fields()
-        if settings:
-            # If language changed, inform user they need to restart OnionShare
-            if changed(settings, self.old_settings, ["locale"]):
-                # Look up error message in different locale
-                new_locale = settings.get("locale")
-                if (
-                    new_locale in strings.translations
-                    and "gui_settings_language_changed_notice"
-                    in strings.translations[new_locale]
-                ):
-                    notice = strings.translations[new_locale][
-                        "gui_settings_language_changed_notice"
-                    ]
-                else:
-                    notice = strings._("gui_settings_language_changed_notice")
-                Alert(self.common, notice, QtWidgets.QMessageBox.Information)
-
-
-            # If color mode changed, inform user they need to restart OnionShare
-            if changed(settings, self.old_settings, ["theme"]):
-                notice = strings._("gui_color_mode_changed_notice")
-                Alert(self.common, notice, QtWidgets.QMessageBox.Information)
-
-            # Save the new settings
-            settings.save()
-
-            # If Tor isn't connected, or if Tor settings have changed, Reinitialize
-            # the Onion object
-            reboot_onion = False
-            if not self.common.gui.local_only:
-                if self.common.gui.onion.is_authenticated():
-                    self.common.log(
-                        "SettingsDialog", "save_clicked", "Connected to Tor"
-                    )
-
-                    if changed(
-                        settings,
-                        self.old_settings,
-                        [
-                            "connection_type",
-                            "control_port_address",
-                            "control_port_port",
-                            "socks_address",
-                            "socks_port",
-                            "socket_file_path",
-                            "auth_type",
-                            "auth_password",
-                            "no_bridges",
-                            "tor_bridges_use_obfs4",
-                            "tor_bridges_use_meek_lite_azure",
-                            "tor_bridges_use_custom_bridges",
-                        ],
-                    ):
-
-                        reboot_onion = True
-
-                else:
-                    self.common.log(
-                        "SettingsDialog", "save_clicked", "Not connected to Tor"
-                    )
-                    # Tor isn't connected, so try connecting
-                    reboot_onion = True
-
-                # Do we need to reinitialize Tor?
-                if reboot_onion:
-                    # Reinitialize the Onion object
-                    self.common.log(
-                        "SettingsDialog", "save_clicked", "rebooting the Onion"
-                    )
-                    self.common.gui.onion.cleanup()
-
-                    tor_con = TorConnectionDialog(self.common, settings)
-                    tor_con.start()
-
-                    self.common.log(
-                        "SettingsDialog",
-                        "save_clicked",
-                        f"Onion done rebooting, connected to Tor: {self.common.gui.onion.connected_to_tor}",
-                    )
-
-                    if (
-                        self.common.gui.onion.is_authenticated()
-                        and not tor_con.wasCanceled()
-                    ):
-                        self.settings_saved.emit()
-                        self.close()
-
-                else:
-                    self.settings_saved.emit()
-                    self.close()
-            else:
-                self.settings_saved.emit()
-                self.close()
-
-    def cancel_clicked(self):
-        """
-        Cancel button clicked.
-        """
-        self.common.log("SettingsDialog", "cancel_clicked")
-        if (
-            not self.common.gui.local_only
-            and not self.common.gui.onion.is_authenticated()
-        ):
-            Alert(
-                self.common,
-                strings._("gui_tor_connection_canceled"),
-                QtWidgets.QMessageBox.Warning,
-            )
-            sys.exit()
-        else:
-            self.close()
-
-    def help_clicked(self):
-        """
-        Help button clicked.
-        """
-        self.common.log("SettingsDialog", "help_clicked")
-        SettingsDialog.open_help()
-
-    @staticmethod
-    def open_help():
-        help_url = "https://docs.onionshare.org/"
-        QtGui.QDesktopServices.openUrl(QtCore.QUrl(help_url))
-
-    def settings_from_fields(self):
-        """
-        Return a Settings object that's full of values from the settings dialog.
-        """
-        self.common.log("SettingsDialog", "settings_from_fields")
-        settings = Settings(self.common)
-        settings.load()  # To get the last update timestamp
-
-        # Theme
-        theme_index = self.theme_combobox.currentIndex()
-        settings.set("theme",theme_index)
-
-        # Language
-        locale_index = self.language_combobox.currentIndex()
-        locale = self.language_combobox.itemData(locale_index)
-        settings.set("locale", locale)
-
-        # Tor connection
-        if self.connection_type_bundled_radio.isChecked():
-            settings.set("connection_type", "bundled")
-        if self.connection_type_automatic_radio.isChecked():
-            settings.set("connection_type", "automatic")
-        if self.connection_type_control_port_radio.isChecked():
-            settings.set("connection_type", "control_port")
-        if self.connection_type_socket_file_radio.isChecked():
-            settings.set("connection_type", "socket_file")
-
-        if self.autoupdate_checkbox.isChecked():
-            settings.set("use_autoupdate", True)
-        else:
-            settings.set("use_autoupdate", False)
-
-        settings.set(
-            "control_port_address",
-            self.connection_type_control_port_extras_address.text(),
-        )
-        settings.set(
-            "control_port_port", self.connection_type_control_port_extras_port.text()
-        )
-        settings.set(
-            "socket_file_path", self.connection_type_socket_file_extras_path.text()
-        )
-
-        settings.set("socks_address", self.connection_type_socks_address.text())
-        settings.set("socks_port", self.connection_type_socks_port.text())
-
-        if self.authenticate_no_auth_radio.isChecked():
-            settings.set("auth_type", "no_auth")
-        if self.authenticate_password_radio.isChecked():
-            settings.set("auth_type", "password")
-
-        settings.set("auth_password", self.authenticate_password_extras_password.text())
-
-        # Whether we use bridges
-        if self.tor_bridges_no_bridges_radio.isChecked():
-            settings.set("no_bridges", True)
-            settings.set("tor_bridges_use_obfs4", False)
-            settings.set("tor_bridges_use_meek_lite_azure", False)
-            settings.set("tor_bridges_use_custom_bridges", "")
-        if self.tor_bridges_use_obfs4_radio.isChecked():
-            settings.set("no_bridges", False)
-            settings.set("tor_bridges_use_obfs4", True)
-            settings.set("tor_bridges_use_meek_lite_azure", False)
-            settings.set("tor_bridges_use_custom_bridges", "")
-        if self.tor_bridges_use_meek_lite_azure_radio.isChecked():
-            settings.set("no_bridges", False)
-            settings.set("tor_bridges_use_obfs4", False)
-            settings.set("tor_bridges_use_meek_lite_azure", True)
-            settings.set("tor_bridges_use_custom_bridges", "")
-        if self.tor_bridges_use_custom_radio.isChecked():
-            settings.set("no_bridges", False)
-            settings.set("tor_bridges_use_obfs4", False)
-            settings.set("tor_bridges_use_meek_lite_azure", False)
-
-            # Insert a 'Bridge' line at the start of each bridge.
-            # This makes it easier to copy/paste a set of bridges
-            # provided from https://bridges.torproject.org
-            new_bridges = []
-            bridges = self.tor_bridges_use_custom_textbox.toPlainText().split("\n")
-            bridges_valid = False
-            for bridge in bridges:
-                if bridge != "":
-                    # Check the syntax of the custom bridge to make sure it looks legitimate
-                    ipv4_pattern = re.compile(
-                        "(obfs4\s+)?(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]):([0-9]+)(\s+)([A-Z0-9]+)(.+)$"
-                    )
-                    ipv6_pattern = re.compile(
-                        "(obfs4\s+)?\[(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))\]:[0-9]+\s+[A-Z0-9]+(.+)$"
-                    )
-                    meek_lite_pattern = re.compile(
-                        "(meek_lite)(\s)+([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+)(\s)+([0-9A-Z]+)(\s)+url=(.+)(\s)+front=(.+)"
-                    )
-                    if (
-                        ipv4_pattern.match(bridge)
-                        or ipv6_pattern.match(bridge)
-                        or meek_lite_pattern.match(bridge)
-                    ):
-                        new_bridges.append("".join(["Bridge ", bridge, "\n"]))
-                        bridges_valid = True
-
-            if bridges_valid:
-                new_bridges = "".join(new_bridges)
-                settings.set("tor_bridges_use_custom_bridges", new_bridges)
-            else:
-                Alert(self.common, strings._("gui_settings_tor_bridges_invalid"))
-                settings.set("no_bridges", True)
-                return False
-
-        return settings
-
-    def closeEvent(self, e):
-        self.common.log("SettingsDialog", "closeEvent")
-
-        # On close, if Tor isn't connected, then quit OnionShare altogether
-        if not self.common.gui.local_only:
-            if not self.common.gui.onion.is_authenticated():
-                self.common.log(
-                    "SettingsDialog", "closeEvent", "Closing while not connected to Tor"
-                )
-
-                # Wait 1ms for the event loop to finish, then quit
-                QtCore.QTimer.singleShot(1, self.common.gui.qtapp.quit)
-
-    def _update_autoupdate_timestamp(self, autoupdate_timestamp):
-        self.common.log("SettingsDialog", "_update_autoupdate_timestamp")
-
-        if autoupdate_timestamp:
-            dt = datetime.datetime.fromtimestamp(autoupdate_timestamp)
-            last_checked = dt.strftime("%B %d, %Y %H:%M")
-        else:
-            last_checked = strings._("gui_settings_autoupdate_timestamp_never")
-        self.autoupdate_timestamp.setText(
-            strings._("gui_settings_autoupdate_timestamp").format(last_checked)
-        )
-
-    def _tor_status_update(self, progress, summary):
-        self.tor_status.setText(
-            f"<strong>{strings._('connecting_to_tor')}</strong><br>{progress}% {summary}"
-        )
-        self.common.gui.qtapp.processEvents()
-        if "Done" in summary:
-            self.tor_status.hide()
-            self._enable_buttons()
-
-    def _disable_buttons(self):
-        self.common.log("SettingsDialog", "_disable_buttons")
-
-        self.check_for_updates_button.setEnabled(False)
-        self.connection_type_test_button.setEnabled(False)
-        self.save_button.setEnabled(False)
-        self.cancel_button.setEnabled(False)
-
-    def _enable_buttons(self):
-        self.common.log("SettingsDialog", "_enable_buttons")
-        # We can't check for updates if we're still not connected to Tor
-        if not self.common.gui.onion.connected_to_tor:
-            self.check_for_updates_button.setEnabled(False)
-        else:
-            self.check_for_updates_button.setEnabled(True)
-        self.connection_type_test_button.setEnabled(True)
-        self.save_button.setEnabled(True)
-        self.cancel_button.setEnabled(True)
diff --git a/desktop/src/onionshare/settings_tab.py b/desktop/src/onionshare/settings_tab.py
new file mode 100644
index 00000000..cfa3261e
--- /dev/null
+++ b/desktop/src/onionshare/settings_tab.py
@@ -0,0 +1,354 @@
+# -*- coding: utf-8 -*-
+"""
+OnionShare | https://onionshare.org/
+
+Copyright (C) 2014-2021 Micah Lee, et al. <micah@micahflee.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+from PySide2 import QtCore, QtWidgets, QtGui
+import platform
+import datetime
+from onionshare_cli.settings import Settings
+
+from . import strings
+from .widgets import Alert
+from .update_checker import UpdateThread
+
+
+class SettingsTab(QtWidgets.QWidget):
+    """
+    Settings dialog.
+    """
+
+    close_this_tab = QtCore.Signal()
+
+    def __init__(self, common, tab_id):
+        super(SettingsTab, self).__init__()
+
+        self.common = common
+        self.common.log("SettingsTab", "__init__")
+
+        self.system = platform.system()
+        self.tab_id = tab_id
+
+        # Automatic updates options
+
+        # Autoupdate
+        self.autoupdate_checkbox = QtWidgets.QCheckBox()
+        self.autoupdate_checkbox.setCheckState(QtCore.Qt.Unchecked)
+        self.autoupdate_checkbox.setText(strings._("gui_settings_autoupdate_option"))
+
+        # Last update time
+        self.autoupdate_timestamp = QtWidgets.QLabel()
+
+        # Check for updates button
+        self.check_for_updates_button = QtWidgets.QPushButton(
+            strings._("gui_settings_autoupdate_check_button")
+        )
+        self.check_for_updates_button.clicked.connect(self.check_for_updates)
+        # We can't check for updates if not connected to Tor
+        if not self.common.gui.onion.connected_to_tor:
+            self.check_for_updates_button.setEnabled(False)
+
+        # Autoupdate options layout
+        autoupdate_group_layout = QtWidgets.QVBoxLayout()
+        autoupdate_group_layout.addWidget(self.autoupdate_checkbox)
+        autoupdate_group_layout.addWidget(self.autoupdate_timestamp)
+        autoupdate_group_layout.addWidget(self.check_for_updates_button)
+        autoupdate_group = QtWidgets.QGroupBox(
+            strings._("gui_settings_autoupdate_label")
+        )
+        autoupdate_group.setLayout(autoupdate_group_layout)
+
+        autoupdate_layout = QtWidgets.QHBoxLayout()
+        autoupdate_layout.addStretch()
+        autoupdate_layout.addWidget(autoupdate_group)
+        autoupdate_layout.addStretch()
+        autoupdate_widget = QtWidgets.QWidget()
+        autoupdate_widget.setLayout(autoupdate_layout)
+
+        # Autoupdate is only available for Windows and Mac (Linux updates using package manager)
+        if self.system != "Windows" and self.system != "Darwin":
+            autoupdate_widget.hide()
+
+        # Language settings
+        language_label = QtWidgets.QLabel(strings._("gui_settings_language_label"))
+        self.language_combobox = QtWidgets.QComboBox()
+        # Populate the dropdown with all of OnionShare's available languages
+        language_names_to_locales = {
+            v: k for k, v in self.common.settings.available_locales.items()
+        }
+        language_names = list(language_names_to_locales)
+        language_names.sort()
+        for language_name in language_names:
+            locale = language_names_to_locales[language_name]
+            self.language_combobox.addItem(language_name, locale)
+        language_layout = QtWidgets.QHBoxLayout()
+        language_layout.addStretch()
+        language_layout.addWidget(language_label)
+        language_layout.addWidget(self.language_combobox)
+        language_layout.addStretch()
+
+        # Theme Settings
+        theme_label = QtWidgets.QLabel(strings._("gui_settings_theme_label"))
+        self.theme_combobox = QtWidgets.QComboBox()
+        theme_choices = [
+            strings._("gui_settings_theme_auto"),
+            strings._("gui_settings_theme_light"),
+            strings._("gui_settings_theme_dark"),
+        ]
+        self.theme_combobox.addItems(theme_choices)
+        theme_layout = QtWidgets.QHBoxLayout()
+        theme_layout.addStretch()
+        theme_layout.addWidget(theme_label)
+        theme_layout.addWidget(self.theme_combobox)
+        theme_layout.addStretch()
+
+        # Version and help
+        version_label = QtWidgets.QLabel(
+            strings._("gui_settings_version_label").format(self.common.version)
+        )
+        version_label.setAlignment(QtCore.Qt.AlignHCenter)
+        help_label = QtWidgets.QLabel(strings._("gui_settings_help_label"))
+        help_label.setAlignment(QtCore.Qt.AlignHCenter)
+        help_label.setTextInteractionFlags(QtCore.Qt.TextBrowserInteraction)
+        help_label.setOpenExternalLinks(True)
+
+        # Buttons
+        self.save_button = QtWidgets.QPushButton(strings._("gui_settings_button_save"))
+        self.save_button.clicked.connect(self.save_clicked)
+        buttons_layout = QtWidgets.QHBoxLayout()
+        buttons_layout.addStretch()
+        buttons_layout.addWidget(self.save_button)
+        buttons_layout.addStretch()
+
+        # Layout
+        layout = QtWidgets.QVBoxLayout()
+        layout.addStretch()
+        layout.addWidget(autoupdate_widget)
+        if autoupdate_widget.isVisible():
+            layout.addSpacing(20)
+        layout.addLayout(language_layout)
+        layout.addLayout(theme_layout)
+        layout.addSpacing(20)
+        layout.addWidget(version_label)
+        layout.addWidget(help_label)
+        layout.addSpacing(20)
+        layout.addLayout(buttons_layout)
+        layout.addStretch()
+
+        self.setLayout(layout)
+
+        self.reload_settings()
+
+        if self.common.gui.onion.connected_to_tor:
+            self.tor_is_connected()
+        else:
+            self.tor_is_disconnected()
+
+    def reload_settings(self):
+        # Load settings, and fill them in
+        self.old_settings = Settings(self.common)
+        self.old_settings.load()
+
+        use_autoupdate = self.old_settings.get("use_autoupdate")
+        if use_autoupdate:
+            self.autoupdate_checkbox.setCheckState(QtCore.Qt.Checked)
+        else:
+            self.autoupdate_checkbox.setCheckState(QtCore.Qt.Unchecked)
+
+        autoupdate_timestamp = self.old_settings.get("autoupdate_timestamp")
+        self._update_autoupdate_timestamp(autoupdate_timestamp)
+
+        locale = self.old_settings.get("locale")
+        locale_index = self.language_combobox.findData(locale)
+        self.language_combobox.setCurrentIndex(locale_index)
+
+        theme_choice = self.old_settings.get("theme")
+        self.theme_combobox.setCurrentIndex(theme_choice)
+
+    def check_for_updates(self):
+        """
+        Check for Updates button clicked. Manually force an update check.
+        """
+        self.common.log("SettingsTab", "check_for_updates")
+        # Disable buttons
+        self._disable_buttons()
+        self.common.gui.qtapp.processEvents()
+
+        def update_timestamp():
+            # Update the last checked label
+            settings = Settings(self.common)
+            settings.load()
+            autoupdate_timestamp = settings.get("autoupdate_timestamp")
+            self._update_autoupdate_timestamp(autoupdate_timestamp)
+
+        def close_forced_update_thread():
+            forced_update_thread.quit()
+            # Enable buttons
+            self._enable_buttons()
+            # Update timestamp
+            update_timestamp()
+
+        # Check for updates
+        def update_available(update_url, installed_version, latest_version):
+            Alert(
+                self.common,
+                strings._("update_available").format(
+                    update_url, installed_version, latest_version
+                ),
+            )
+            close_forced_update_thread()
+
+        def update_not_available():
+            Alert(self.common, strings._("update_not_available"))
+            close_forced_update_thread()
+
+        def update_error():
+            Alert(
+                self.common,
+                strings._("update_error_check_error"),
+                QtWidgets.QMessageBox.Warning,
+            )
+            close_forced_update_thread()
+
+        def update_invalid_version(latest_version):
+            Alert(
+                self.common,
+                strings._("update_error_invalid_latest_version").format(latest_version),
+                QtWidgets.QMessageBox.Warning,
+            )
+            close_forced_update_thread()
+
+        forced_update_thread = UpdateThread(
+            self.common, self.common.gui.onion, force=True
+        )
+        forced_update_thread.update_available.connect(update_available)
+        forced_update_thread.update_not_available.connect(update_not_available)
+        forced_update_thread.update_error.connect(update_error)
+        forced_update_thread.update_invalid_version.connect(update_invalid_version)
+        forced_update_thread.start()
+
+    def save_clicked(self):
+        """
+        Save button clicked. Save current settings to disk.
+        """
+        self.common.log("SettingsTab", "save_clicked")
+
+        def changed(s1, s2, keys):
+            """
+            Compare the Settings objects s1 and s2 and return true if any values
+            have changed for the given keys.
+            """
+            for key in keys:
+                if s1.get(key) != s2.get(key):
+                    return True
+            return False
+
+        settings = self.settings_from_fields()
+        if settings:
+            # If language changed, inform user they need to restart OnionShare
+            if changed(settings, self.old_settings, ["locale"]):
+                # Look up error message in different locale
+                new_locale = settings.get("locale")
+                if (
+                    new_locale in strings.translations
+                    and "gui_settings_language_changed_notice"
+                    in strings.translations[new_locale]
+                ):
+                    notice = strings.translations[new_locale][
+                        "gui_settings_language_changed_notice"
+                    ]
+                else:
+                    notice = strings._("gui_settings_language_changed_notice")
+                Alert(self.common, notice, QtWidgets.QMessageBox.Information)
+
+            # If color mode changed, inform user they need to restart OnionShare
+            if changed(settings, self.old_settings, ["theme"]):
+                notice = strings._("gui_color_mode_changed_notice")
+                Alert(self.common, notice, QtWidgets.QMessageBox.Information)
+
+            # Save the new settings
+            settings.save()
+            self.close_this_tab.emit()
+
+    def help_clicked(self):
+        """
+        Help button clicked.
+        """
+        self.common.log("SettingsTab", "help_clicked")
+        SettingsTab.open_help()
+
+    @staticmethod
+    def open_help():
+        help_url = "https://docs.onionshare.org/"
+        QtGui.QDesktopServices.openUrl(QtCore.QUrl(help_url))
+
+    def settings_from_fields(self):
+        """
+        Return a Settings object that's full of values from the settings dialog.
+        """
+        self.common.log("SettingsTab", "settings_from_fields")
+        settings = Settings(self.common)
+        settings.load()  # To get the last update timestamp
+
+        # Theme
+        theme_index = self.theme_combobox.currentIndex()
+        settings.set("theme", theme_index)
+
+        # Language
+        locale_index = self.language_combobox.currentIndex()
+        locale = self.language_combobox.itemData(locale_index)
+        settings.set("locale", locale)
+
+        return settings
+
+    def settings_have_changed(self):
+        # Global settings have changed
+        self.common.log("SettingsTab", "settings_have_changed")
+
+    def _update_autoupdate_timestamp(self, autoupdate_timestamp):
+        self.common.log("SettingsTab", "_update_autoupdate_timestamp")
+
+        if autoupdate_timestamp:
+            dt = datetime.datetime.fromtimestamp(autoupdate_timestamp)
+            last_checked = dt.strftime("%B %d, %Y %H:%M")
+        else:
+            last_checked = strings._("gui_settings_autoupdate_timestamp_never")
+        self.autoupdate_timestamp.setText(
+            strings._("gui_settings_autoupdate_timestamp").format(last_checked)
+        )
+
+    def _disable_buttons(self):
+        self.common.log("SettingsTab", "_disable_buttons")
+
+        self.check_for_updates_button.setEnabled(False)
+        self.save_button.setEnabled(False)
+
+    def _enable_buttons(self):
+        self.common.log("SettingsTab", "_enable_buttons")
+        # We can't check for updates if we're still not connected to Tor
+        if not self.common.gui.onion.connected_to_tor:
+            self.check_for_updates_button.setEnabled(False)
+        else:
+            self.check_for_updates_button.setEnabled(True)
+        self.save_button.setEnabled(True)
+
+    def tor_is_connected(self):
+        self.check_for_updates_button.show()
+
+    def tor_is_disconnected(self):
+        self.check_for_updates_button.hide()
diff --git a/desktop/src/onionshare/tab/mode/__init__.py b/desktop/src/onionshare/tab/mode/__init__.py
index d4f2c23a..c9b5cad1 100644
--- a/desktop/src/onionshare/tab/mode/__init__.py
+++ b/desktop/src/onionshare/tab/mode/__init__.py
@@ -28,7 +28,7 @@ from .mode_settings_widget import ModeSettingsWidget
 from ..server_status import ServerStatus
 from ... import strings
 from ...threads import OnionThread, AutoStartTimer
-from ...widgets import Alert
+from ...widgets import Alert, MinimumSizeWidget
 
 
 class Mode(QtWidgets.QWidget):
@@ -101,6 +101,38 @@ class Mode(QtWidgets.QWidget):
         self.primary_action = QtWidgets.QWidget()
         self.primary_action.setLayout(self.primary_action_layout)
 
+        # It's up to the downstream Mode to add stuff to self.content_layout
+        # self.content_layout shows the actual content of the mode
+        # self.tor_not_connected_layout is displayed when Tor isn't connected
+        self.content_layout = QtWidgets.QVBoxLayout()
+        self.content_widget = QtWidgets.QWidget()
+        self.content_widget.setLayout(self.content_layout)
+
+        tor_not_connected_label = QtWidgets.QLabel(
+            strings._("mode_tor_not_connected_label")
+        )
+        tor_not_connected_label.setAlignment(QtCore.Qt.AlignHCenter)
+        tor_not_connected_label.setStyleSheet(
+            self.common.gui.css["tor_not_connected_label"]
+        )
+        self.tor_not_connected_layout = QtWidgets.QVBoxLayout()
+        self.tor_not_connected_layout.addStretch()
+        self.tor_not_connected_layout.addWidget(tor_not_connected_label)
+        self.tor_not_connected_layout.addWidget(MinimumSizeWidget(700, 0))
+        self.tor_not_connected_layout.addStretch()
+        self.tor_not_connected_widget = QtWidgets.QWidget()
+        self.tor_not_connected_widget.setLayout(self.tor_not_connected_layout)
+
+        self.wrapper_layout = QtWidgets.QVBoxLayout()
+        self.wrapper_layout.addWidget(self.content_widget)
+        self.wrapper_layout.addWidget(self.tor_not_connected_widget)
+        self.setLayout(self.wrapper_layout)
+
+        if self.common.gui.onion.connected_to_tor:
+            self.tor_connection_started()
+        else:
+            self.tor_connection_stopped()
+
     def init(self):
         """
         Add custom initialization here.
@@ -524,3 +556,21 @@ class Mode(QtWidgets.QWidget):
         Used in both Share and Website modes, so implemented here.
         """
         self.history.cancel(event["data"]["id"])
+
+    def tor_connection_started(self):
+        """
+        This is called on every Mode when Tor is connected
+        """
+        self.content_widget.show()
+        self.tor_not_connected_widget.hide()
+
+    def tor_connection_stopped(self):
+        """
+        This is called on every Mode when Tor is disconnected
+        """
+        if self.common.gui.local_only:
+            self.tor_connection_started()
+            return
+
+        self.content_widget.hide()
+        self.tor_not_connected_widget.show()
diff --git a/desktop/src/onionshare/tab/mode/chat_mode/__init__.py b/desktop/src/onionshare/tab/mode/chat_mode/__init__.py
index e7a17ce7..1081fe9d 100644
--- a/desktop/src/onionshare/tab/mode/chat_mode/__init__.py
+++ b/desktop/src/onionshare/tab/mode/chat_mode/__init__.py
@@ -98,10 +98,8 @@ class ChatMode(Mode):
         self.column_layout.addWidget(self.image)
         self.column_layout.addLayout(self.main_layout)
 
-        # Wrapper layout
-        self.wrapper_layout = QtWidgets.QVBoxLayout()
-        self.wrapper_layout.addLayout(self.column_layout)
-        self.setLayout(self.wrapper_layout)
+        # Content layout
+        self.content_layout.addLayout(self.column_layout)
 
     def get_type(self):
         """
diff --git a/desktop/src/onionshare/tab/mode/receive_mode/__init__.py b/desktop/src/onionshare/tab/mode/receive_mode/__init__.py
index d5036d1d..b2b2fc5a 100644
--- a/desktop/src/onionshare/tab/mode/receive_mode/__init__.py
+++ b/desktop/src/onionshare/tab/mode/receive_mode/__init__.py
@@ -198,10 +198,8 @@ class ReceiveMode(Mode):
         self.column_layout.addLayout(row_layout)
         self.column_layout.addWidget(self.history, stretch=1)
 
-        # Wrapper layout
-        self.wrapper_layout = QtWidgets.QVBoxLayout()
-        self.wrapper_layout.addLayout(self.column_layout)
-        self.setLayout(self.wrapper_layout)
+        # Content layout
+        self.content_layout.addLayout(self.column_layout)
 
     def get_type(self):
         """
diff --git a/desktop/src/onionshare/tab/mode/share_mode/__init__.py b/desktop/src/onionshare/tab/mode/share_mode/__init__.py
index 5d3e3c35..7be93f1d 100644
--- a/desktop/src/onionshare/tab/mode/share_mode/__init__.py
+++ b/desktop/src/onionshare/tab/mode/share_mode/__init__.py
@@ -169,10 +169,8 @@ class ShareMode(Mode):
         self.column_layout.addLayout(self.main_layout)
         self.column_layout.addWidget(self.history, stretch=1)
 
-        # Wrapper layout
-        self.wrapper_layout = QtWidgets.QVBoxLayout()
-        self.wrapper_layout.addLayout(self.column_layout)
-        self.setLayout(self.wrapper_layout)
+        # Content layout
+        self.content_layout.addLayout(self.column_layout)
 
         # Always start with focus on file selection
         self.file_selection.setFocus()
diff --git a/desktop/src/onionshare/tab/mode/website_mode/__init__.py b/desktop/src/onionshare/tab/mode/website_mode/__init__.py
index 6d1df88c..0acbc1a2 100644
--- a/desktop/src/onionshare/tab/mode/website_mode/__init__.py
+++ b/desktop/src/onionshare/tab/mode/website_mode/__init__.py
@@ -188,10 +188,8 @@ class WebsiteMode(Mode):
         self.column_layout.addLayout(self.main_layout)
         self.column_layout.addWidget(self.history, stretch=1)
 
-        # Wrapper layout
-        self.wrapper_layout = QtWidgets.QVBoxLayout()
-        self.wrapper_layout.addLayout(self.column_layout)
-        self.setLayout(self.wrapper_layout)
+        # Content layout
+        self.content_layout.addLayout(self.column_layout)
 
         # Always start with focus on file selection
         self.file_selection.setFocus()
diff --git a/desktop/src/onionshare/tab/tab.py b/desktop/src/onionshare/tab/tab.py
index 7276b8da..2e592771 100644
--- a/desktop/src/onionshare/tab/tab.py
+++ b/desktop/src/onionshare/tab/tab.py
@@ -96,7 +96,6 @@ class Tab(QtWidgets.QWidget):
         tab_id,
         system_tray,
         status_bar,
-        mode_settings=None,
         filenames=None,
     ):
         super(Tab, self).__init__()
diff --git a/desktop/src/onionshare/tab_widget.py b/desktop/src/onionshare/tab_widget.py
index a955ea53..7162fcc4 100644
--- a/desktop/src/onionshare/tab_widget.py
+++ b/desktop/src/onionshare/tab_widget.py
@@ -26,6 +26,8 @@ from . import strings
 from .tab import Tab
 from .threads import EventHandlerThread
 from .gui_common import GuiCommon
+from .tor_settings_tab import TorSettingsTab
+from .settings_tab import SettingsTab
 
 
 class TabWidget(QtWidgets.QTabWidget):
@@ -43,9 +45,12 @@ class TabWidget(QtWidgets.QTabWidget):
         self.system_tray = system_tray
         self.status_bar = status_bar
 
-        # Keep track of tabs in a dictionary
+        # Keep track of tabs in a dictionary that maps tab_id to tab.
+        # Each tab has a unique, auto-incremented id (tab_id). This is different than the
+        # tab's index, which changes as tabs are re-arranged.
         self.tabs = {}
         self.current_tab_id = 0  # Each tab has a unique id
+        self.tor_settings_tab = None
 
         # Define the new tab button
         self.new_tab_button = QtWidgets.QPushButton("+", parent=self)
@@ -89,9 +94,12 @@ class TabWidget(QtWidgets.QTabWidget):
         self.event_handler_t.wait(50)
 
         # Clean up each tab
-        for index in range(self.count()):
-            tab = self.widget(index)
-            tab.cleanup()
+        for tab_id in self.tabs:
+            if not (
+                type(self.tabs[tab_id]) is SettingsTab
+                or type(self.tabs[tab_id]) is TorSettingsTab
+            ):
+                self.tabs[tab_id].cleanup()
 
     def move_new_tab_button(self):
         # Find the width of all tabs
@@ -114,8 +122,28 @@ class TabWidget(QtWidgets.QTabWidget):
 
     def tab_changed(self):
         # Active tab was changed
-        tab_id = self.currentIndex()
+        tab = self.widget(self.currentIndex())
+        if not tab:
+            self.common.log(
+                "TabWidget",
+                "tab_changed",
+                f"tab at index {self.currentIndex()} does not exist",
+            )
+            return
+
+        tab_id = tab.tab_id
         self.common.log("TabWidget", "tab_changed", f"Tab was changed to {tab_id}")
+
+        # If it's Settings or Tor Settings, ignore
+        if (
+            type(self.tabs[tab_id]) is SettingsTab
+            or type(self.tabs[tab_id]) is TorSettingsTab
+        ):
+            # Blank the server status indicator
+            self.status_bar.server_status_image_label.clear()
+            self.status_bar.server_status_label.clear()
+            return
+
         try:
             mode = self.tabs[tab_id].get_mode()
             if mode:
@@ -158,23 +186,6 @@ class TabWidget(QtWidgets.QTabWidget):
         index = self.addTab(tab, strings._("gui_new_tab"))
         self.setCurrentIndex(index)
 
-        # In macOS, manually create a close button because tabs don't seem to have them otherwise
-        if self.common.platform == "Darwin":
-
-            def close_tab():
-                self.tabBar().tabCloseRequested.emit(self.indexOf(tab))
-
-            tab.close_button = QtWidgets.QPushButton()
-            tab.close_button.setFlat(True)
-            tab.close_button.setFixedWidth(40)
-            tab.close_button.setIcon(
-                QtGui.QIcon(GuiCommon.get_resource_path("images/close_tab.png"))
-            )
-            tab.close_button.clicked.connect(close_tab)
-            self.tabBar().setTabButton(
-                index, QtWidgets.QTabBar.RightSide, tab.close_button
-            )
-
         tab.init(mode_settings)
 
         # Make sure the title is set
@@ -187,6 +198,44 @@ class TabWidget(QtWidgets.QTabWidget):
         # Bring the window to front, in case this is being added by an event
         self.bring_to_front.emit()
 
+    def open_settings_tab(self):
+        self.common.log("TabWidget", "open_settings_tab")
+
+        # See if a settings tab is already open, and if so switch to it
+        for tab_id in self.tabs:
+            if type(self.tabs[tab_id]) is SettingsTab:
+                self.setCurrentIndex(self.indexOf(self.tabs[tab_id]))
+                return
+
+        settings_tab = SettingsTab(self.common, self.current_tab_id)
+        settings_tab.close_this_tab.connect(self.close_settings_tab)
+        self.tabs[self.current_tab_id] = settings_tab
+        self.current_tab_id += 1
+        index = self.addTab(settings_tab, strings._("gui_settings_window_title"))
+        self.setCurrentIndex(index)
+
+    def open_tor_settings_tab(self):
+        self.common.log("TabWidget", "open_tor_settings_tab")
+
+        # See if a settings tab is already open, and if so switch to it
+        for tab_id in self.tabs:
+            if type(self.tabs[tab_id]) is TorSettingsTab:
+                self.setCurrentIndex(self.indexOf(self.tabs[tab_id]))
+                return
+
+        self.tor_settings_tab = TorSettingsTab(
+            self.common, self.current_tab_id, self.are_tabs_active(), self.status_bar
+        )
+        self.tor_settings_tab.close_this_tab.connect(self.close_tor_settings_tab)
+        self.tor_settings_tab.tor_is_connected.connect(self.tor_is_connected)
+        self.tor_settings_tab.tor_is_disconnected.connect(self.tor_is_disconnected)
+        self.tabs[self.current_tab_id] = self.tor_settings_tab
+        self.current_tab_id += 1
+        index = self.addTab(
+            self.tor_settings_tab, strings._("gui_tor_settings_window_title")
+        )
+        self.setCurrentIndex(index)
+
     def change_title(self, tab_id, title):
         shortened_title = title
         if len(shortened_title) > 11:
@@ -200,6 +249,11 @@ class TabWidget(QtWidgets.QTabWidget):
         index = self.indexOf(self.tabs[tab_id])
         self.setTabIcon(index, QtGui.QIcon(GuiCommon.get_resource_path(icon_path)))
 
+        # The icon changes when the server status changes, so if we have an open
+        # Tor Settings tab, tell it to update
+        if self.tor_settings_tab:
+            self.tor_settings_tab.active_tabs_changed(self.are_tabs_active())
+
     def change_persistent(self, tab_id, is_persistent):
         self.common.log(
             "TabWidget",
@@ -223,10 +277,14 @@ class TabWidget(QtWidgets.QTabWidget):
     def save_persistent_tabs(self):
         # Figure out the order of persistent tabs to save in settings
         persistent_tabs = []
-        for index in range(self.count()):
-            tab = self.widget(index)
-            if tab.settings.get("persistent", "enabled"):
-                persistent_tabs.append(tab.settings.id)
+        for tab_id in self.tabs:
+            if not (
+                type(self.tabs[tab_id]) is SettingsTab
+                or type(self.tabs[tab_id]) is TorSettingsTab
+            ):
+                tab = self.widget(self.indexOf(self.tabs[tab_id]))
+                if tab.settings.get("persistent", "enabled"):
+                    persistent_tabs.append(tab.settings.id)
         # Only save if tabs have actually moved
         if persistent_tabs != self.common.settings.get("persistent_tabs"):
             self.common.settings.set("persistent_tabs", persistent_tabs)
@@ -235,10 +293,16 @@ class TabWidget(QtWidgets.QTabWidget):
     def close_tab(self, index):
         self.common.log("TabWidget", "close_tab", f"{index}")
         tab = self.widget(index)
-        if tab.close_tab():
-            # If the tab is persistent, delete the settings file from disk
-            if tab.settings.get("persistent", "enabled"):
-                tab.settings.delete()
+        tab_id = tab.tab_id
+
+        if (
+            type(self.tabs[tab_id]) is SettingsTab
+            or type(self.tabs[tab_id]) is TorSettingsTab
+        ):
+            self.common.log("TabWidget", "closing a settings tab")
+
+            if type(self.tabs[tab_id]) is TorSettingsTab:
+                self.tor_settings_tab = None
 
             # Remove the tab
             self.removeTab(index)
@@ -248,17 +312,56 @@ class TabWidget(QtWidgets.QTabWidget):
             if self.count() == 0:
                 self.new_tab_clicked()
 
-        self.save_persistent_tabs()
+        else:
+            self.common.log("TabWidget", "closing a service tab")
+            if tab.close_tab():
+                self.common.log("TabWidget", "user is okay with closing the tab")
+
+                # If the tab is persistent, delete the settings file from disk
+                if tab.settings.get("persistent", "enabled"):
+                    tab.settings.delete()
+
+                self.save_persistent_tabs()
+
+                # Remove the tab
+                self.removeTab(index)
+                del self.tabs[tab.tab_id]
+
+                # If the last tab is closed, open a new one
+                if self.count() == 0:
+                    self.new_tab_clicked()
+            else:
+                self.common.log("TabWidget", "user does not want to close the tab")
+
+    def close_settings_tab(self):
+        self.common.log("TabWidget", "close_settings_tab")
+        for tab_id in self.tabs:
+            if type(self.tabs[tab_id]) is SettingsTab:
+                index = self.indexOf(self.tabs[tab_id])
+                self.close_tab(index)
+                return
+
+    def close_tor_settings_tab(self):
+        self.common.log("TabWidget", "close_tor_settings_tab")
+        for tab_id in self.tabs:
+            if type(self.tabs[tab_id]) is TorSettingsTab:
+                index = self.indexOf(self.tabs[tab_id])
+                self.close_tab(index)
+                return
 
     def are_tabs_active(self):
         """
         See if there are active servers in any open tabs
         """
         for tab_id in self.tabs:
-            mode = self.tabs[tab_id].get_mode()
-            if mode:
-                if mode.server_status.status != mode.server_status.STATUS_STOPPED:
-                    return True
+            if not (
+                type(self.tabs[tab_id]) is SettingsTab
+                or type(self.tabs[tab_id]) is TorSettingsTab
+            ):
+                mode = self.tabs[tab_id].get_mode()
+                if mode:
+                    if mode.server_status.status != mode.server_status.STATUS_STOPPED:
+                        return True
         return False
 
     def paintEvent(self, event):
@@ -273,6 +376,26 @@ class TabWidget(QtWidgets.QTabWidget):
         super(TabWidget, self).resizeEvent(event)
         self.move_new_tab_button()
 
+    def tor_is_connected(self):
+        for tab_id in self.tabs:
+            if type(self.tabs[tab_id]) is SettingsTab:
+                self.tabs[tab_id].tor_is_connected()
+            else:
+                if not type(self.tabs[tab_id]) is TorSettingsTab:
+                    mode = self.tabs[tab_id].get_mode()
+                    if mode:
+                        mode.tor_connection_started()
+
+    def tor_is_disconnected(self):
+        for tab_id in self.tabs:
+            if type(self.tabs[tab_id]) is SettingsTab:
+                self.tabs[tab_id].tor_is_disconnected()
+            else:
+                if not type(self.tabs[tab_id]) is TorSettingsTab:
+                    mode = self.tabs[tab_id].get_mode()
+                    if mode:
+                        mode.tor_connection_stopped()
+
 
 class TabBar(QtWidgets.QTabBar):
     """
diff --git a/desktop/src/onionshare/tor_connection_dialog.py b/desktop/src/onionshare/tor_connection.py
index b5c2f61c..2cc599c4 100644
--- a/desktop/src/onionshare/tor_connection_dialog.py
+++ b/desktop/src/onionshare/tor_connection.py
@@ -48,12 +48,16 @@ class TorConnectionDialog(QtWidgets.QProgressDialog):
     Connecting to Tor dialog.
     """
 
-    open_settings = QtCore.Signal()
+    open_tor_settings = QtCore.Signal()
+    success = QtCore.Signal()
 
-    def __init__(self, common, custom_settings=False):
+    def __init__(
+        self, common, custom_settings=False, testing_settings=False, onion=None
+    ):
         super(TorConnectionDialog, self).__init__(None)
 
         self.common = common
+        self.testing_settings = testing_settings
 
         if custom_settings:
             self.settings = custom_settings
@@ -62,7 +66,15 @@ class TorConnectionDialog(QtWidgets.QProgressDialog):
 
         self.common.log("TorConnectionDialog", "__init__")
 
-        self.setWindowTitle("OnionShare")
+        if self.testing_settings:
+            self.title = strings._("gui_settings_connection_type_test_button")
+            self.onion = onion
+        else:
+            self.title = "OnionShare"
+            self.onion = self.common.gui.onion
+
+        self.setWindowTitle(self.title)
+
         self.setWindowIcon(QtGui.QIcon(GuiCommon.get_resource_path("images/logo.png")))
         self.setModal(True)
         self.setFixedSize(400, 150)
@@ -105,14 +117,13 @@ class TorConnectionDialog(QtWidgets.QProgressDialog):
     def _connected_to_tor(self):
         self.common.log("TorConnectionDialog", "_connected_to_tor")
         self.active = False
-
         # Close the dialog after connecting
         self.setValue(self.maximum())
 
     def _canceled_connecting_to_tor(self):
         self.common.log("TorConnectionDialog", "_canceled_connecting_to_tor")
         self.active = False
-        self.common.gui.onion.cleanup()
+        self.onion.cleanup()
 
         # Cancel connecting to Tor
         QtCore.QTimer.singleShot(1, self.cancel)
@@ -121,47 +132,160 @@ class TorConnectionDialog(QtWidgets.QProgressDialog):
         self.common.log("TorConnectionDialog", "_error_connecting_to_tor")
         self.active = False
 
-        def alert_and_open_settings():
-            # Display the exception in an alert box
-            Alert(
-                self.common,
-                f"{msg}\n\n{strings._('gui_tor_connection_error_settings')}",
-                QtWidgets.QMessageBox.Warning,
-            )
+        if self.testing_settings:
+            # If testing, just display the error but don't open settings
+            def alert():
+                Alert(self.common, msg, QtWidgets.QMessageBox.Warning, title=self.title)
 
-            # Open settings
-            self.open_settings.emit()
+        else:
+            # If not testing, open settings after displaying the error
+            def alert():
+                Alert(
+                    self.common,
+                    f"{msg}\n\n{strings._('gui_tor_connection_error_settings')}",
+                    QtWidgets.QMessageBox.Warning,
+                    title=self.title,
+                )
+
+                # Open settings
+                self.open_tor_settings.emit()
 
-        QtCore.QTimer.singleShot(1, alert_and_open_settings)
+        QtCore.QTimer.singleShot(1, alert)
 
         # Cancel connecting to Tor
         QtCore.QTimer.singleShot(1, self.cancel)
 
 
+class TorConnectionWidget(QtWidgets.QWidget):
+    """
+    Connecting to Tor widget, with a progress bar
+    """
+
+    open_tor_settings = QtCore.Signal()
+    success = QtCore.Signal()
+    fail = QtCore.Signal(str)
+
+    def __init__(self, common, status_bar):
+        super(TorConnectionWidget, self).__init__(None)
+        self.common = common
+        self.common.log("TorConnectionWidget", "__init__")
+
+        self.status_bar = status_bar
+        self.label = QtWidgets.QLabel(strings._("connecting_to_tor"))
+        self.label.setAlignment(QtCore.Qt.AlignHCenter)
+
+        self.progress = QtWidgets.QProgressBar()
+        self.progress.setRange(0, 100)
+        self.cancel_button = QtWidgets.QPushButton(
+            strings._("gui_settings_button_cancel")
+        )
+        self.cancel_button.clicked.connect(self.cancel_clicked)
+
+        progress_layout = QtWidgets.QHBoxLayout()
+        progress_layout.addWidget(self.progress)
+        progress_layout.addWidget(self.cancel_button)
+
+        inner_layout = QtWidgets.QVBoxLayout()
+        inner_layout.addWidget(self.label)
+        inner_layout.addLayout(progress_layout)
+
+        layout = QtWidgets.QHBoxLayout()
+        layout.addStretch()
+        layout.addLayout(inner_layout)
+        layout.addStretch()
+        self.setLayout(layout)
+
+        # Start displaying the status at 0
+        self._tor_status_update(0, "")
+
+    def start(self, custom_settings=False, testing_settings=False, onion=None):
+        self.common.log("TorConnectionWidget", "start")
+        self.was_canceled = False
+
+        self.testing_settings = testing_settings
+
+        if custom_settings:
+            self.settings = custom_settings
+        else:
+            self.settings = self.common.settings
+
+        if self.testing_settings:
+            self.onion = onion
+        else:
+            self.onion = self.common.gui.onion
+
+        t = TorConnectionThread(self.common, self.settings, self)
+        t.tor_status_update.connect(self._tor_status_update)
+        t.connected_to_tor.connect(self._connected_to_tor)
+        t.canceled_connecting_to_tor.connect(self._canceled_connecting_to_tor)
+        t.error_connecting_to_tor.connect(self._error_connecting_to_tor)
+        t.start()
+
+        # The main thread needs to remain active, and checking for Qt events,
+        # until the thread is finished. Otherwise it won't be able to handle
+        # accepting signals.
+        self.active = True
+        while self.active:
+            time.sleep(0.1)
+            self.common.gui.qtapp.processEvents()
+
+    def cancel_clicked(self):
+        self.was_canceled = True
+        self.fail.emit("")
+
+    def wasCanceled(self):
+        return self.was_canceled
+
+    def _tor_status_update(self, progress, summary):
+        self.progress.setValue(int(progress))
+        self.label.setText(
+            f"<strong>{strings._('connecting_to_tor')}</strong><br>{summary}"
+        )
+
+    def _connected_to_tor(self):
+        self.common.log("TorConnectionWidget", "_connected_to_tor")
+        self.active = False
+        self.status_bar.clearMessage()
+
+        # Close the dialog after connecting
+        self.progress.setValue(self.progress.maximum())
+
+        self.success.emit()
+
+    def _canceled_connecting_to_tor(self):
+        self.common.log("TorConnectionWidget", "_canceled_connecting_to_tor")
+        self.active = False
+        self.onion.cleanup()
+
+        # Cancel connecting to Tor
+        QtCore.QTimer.singleShot(1, self.cancel_clicked)
+
+    def _error_connecting_to_tor(self, msg):
+        self.common.log("TorConnectionWidget", "_error_connecting_to_tor")
+        self.active = False
+        self.fail.emit(msg)
+
+
 class TorConnectionThread(QtCore.QThread):
     tor_status_update = QtCore.Signal(str, str)
     connected_to_tor = QtCore.Signal()
     canceled_connecting_to_tor = QtCore.Signal()
     error_connecting_to_tor = QtCore.Signal(str)
 
-    def __init__(self, common, settings, dialog):
+    def __init__(self, common, settings, parent):
         super(TorConnectionThread, self).__init__()
-
         self.common = common
-
         self.common.log("TorConnectionThread", "__init__")
-
         self.settings = settings
-
-        self.dialog = dialog
+        self.parent = parent
 
     def run(self):
         self.common.log("TorConnectionThread", "run")
 
         # Connect to the Onion
         try:
-            self.common.gui.onion.connect(self.settings, False, self._tor_status_update)
-            if self.common.gui.onion.connected_to_tor:
+            self.parent.onion.connect(self.settings, False, self._tor_status_update)
+            if self.parent.onion.connected_to_tor:
                 self.connected_to_tor.emit()
             else:
                 self.canceled_connecting_to_tor.emit()
@@ -197,4 +321,4 @@ class TorConnectionThread(QtCore.QThread):
         self.tor_status_update.emit(progress, summary)
 
         # Return False if the dialog was canceled
-        return not self.dialog.wasCanceled()
+        return not self.parent.wasCanceled()
diff --git a/desktop/src/onionshare/tor_settings_tab.py b/desktop/src/onionshare/tor_settings_tab.py
new file mode 100644
index 00000000..e28e5260
--- /dev/null
+++ b/desktop/src/onionshare/tor_settings_tab.py
@@ -0,0 +1,895 @@
+# -*- coding: utf-8 -*-
+"""
+OnionShare | https://onionshare.org/
+
+Copyright (C) 2014-2021 Micah Lee, et al. <micah@micahflee.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+from PySide2 import QtCore, QtWidgets, QtGui
+import sys
+import platform
+import re
+import os
+
+from onionshare_cli.meek import Meek
+from onionshare_cli.settings import Settings
+from onionshare_cli.onion import Onion
+
+from . import strings
+from .widgets import Alert
+from .tor_connection import TorConnectionWidget
+from .moat_dialog import MoatDialog
+
+
+class TorSettingsTab(QtWidgets.QWidget):
+    """
+    Settings dialog.
+    """
+
+    close_this_tab = QtCore.Signal()
+    tor_is_connected = QtCore.Signal()
+    tor_is_disconnected = QtCore.Signal()
+
+    def __init__(self, common, tab_id, are_tabs_active, status_bar):
+        super(TorSettingsTab, self).__init__()
+
+        self.common = common
+        self.common.log("TorSettingsTab", "__init__")
+
+        self.status_bar = status_bar
+        self.meek = Meek(common, get_tor_paths=self.common.gui.get_tor_paths)
+
+        self.system = platform.system()
+        self.tab_id = tab_id
+
+        # Connection type: either automatic, control port, or socket file
+
+        # Bundled Tor
+        self.connection_type_bundled_radio = QtWidgets.QRadioButton(
+            strings._("gui_settings_connection_type_bundled_option")
+        )
+        self.connection_type_bundled_radio.toggled.connect(
+            self.connection_type_bundled_toggled
+        )
+
+        # Bundled Tor doesn't work on dev mode in Windows or Mac
+        if (self.system == "Windows" or self.system == "Darwin") and getattr(
+            sys, "onionshare_dev_mode", False
+        ):
+            self.connection_type_bundled_radio.setEnabled(False)
+
+        # Bridge options for bundled tor
+
+        (
+            self.tor_path,
+            self.tor_geo_ip_file_path,
+            self.tor_geo_ipv6_file_path,
+            self.obfs4proxy_file_path,
+            self.snowflake_file_path,
+            self.meek_client_file_path,
+        ) = self.common.gui.get_tor_paths()
+
+        bridges_label = QtWidgets.QLabel(strings._("gui_settings_tor_bridges_label"))
+        bridges_label.setWordWrap(True)
+
+        self.bridge_use_checkbox = QtWidgets.QCheckBox(
+            strings._("gui_settings_bridge_use_checkbox")
+        )
+        self.bridge_use_checkbox.stateChanged.connect(
+            self.bridge_use_checkbox_state_changed
+        )
+
+        # Built-in bridge
+        self.bridge_builtin_radio = QtWidgets.QRadioButton(
+            strings._("gui_settings_bridge_radio_builtin")
+        )
+        self.bridge_builtin_radio.toggled.connect(self.bridge_builtin_radio_toggled)
+        self.bridge_builtin_dropdown = QtWidgets.QComboBox()
+        self.bridge_builtin_dropdown.currentTextChanged.connect(
+            self.bridge_builtin_dropdown_changed
+        )
+        if self.obfs4proxy_file_path and os.path.isfile(self.obfs4proxy_file_path):
+            self.bridge_builtin_dropdown.addItem("obfs4")
+            self.bridge_builtin_dropdown.addItem("meek-azure")
+        if self.snowflake_file_path and os.path.isfile(self.snowflake_file_path):
+            self.bridge_builtin_dropdown.addItem("snowflake")
+
+        # Request a bridge from torproject.org (moat)
+        self.bridge_moat_radio = QtWidgets.QRadioButton(
+            strings._("gui_settings_bridge_moat_radio_option")
+        )
+        self.bridge_moat_radio.toggled.connect(self.bridge_moat_radio_toggled)
+        self.bridge_moat_button = QtWidgets.QPushButton(
+            strings._("gui_settings_bridge_moat_button")
+        )
+        self.bridge_moat_button.clicked.connect(self.bridge_moat_button_clicked)
+        self.bridge_moat_textbox = QtWidgets.QPlainTextEdit()
+        self.bridge_moat_textbox.setMinimumHeight(100)
+        self.bridge_moat_textbox.setMaximumHeight(100)
+        self.bridge_moat_textbox.setReadOnly(True)
+        self.bridge_moat_textbox.setWordWrapMode(QtGui.QTextOption.NoWrap)
+        bridge_moat_textbox_options_layout = QtWidgets.QVBoxLayout()
+        bridge_moat_textbox_options_layout.addWidget(self.bridge_moat_button)
+        bridge_moat_textbox_options_layout.addWidget(self.bridge_moat_textbox)
+        self.bridge_moat_textbox_options = QtWidgets.QWidget()
+        self.bridge_moat_textbox_options.setLayout(bridge_moat_textbox_options_layout)
+        self.bridge_moat_textbox_options.hide()
+
+        # Custom bridges radio and textbox
+        self.bridge_custom_radio = QtWidgets.QRadioButton(
+            strings._("gui_settings_bridge_custom_radio_option")
+        )
+        self.bridge_custom_radio.toggled.connect(self.bridge_custom_radio_toggled)
+        self.bridge_custom_textbox = QtWidgets.QPlainTextEdit()
+        self.bridge_custom_textbox.setMinimumHeight(100)
+        self.bridge_custom_textbox.setMaximumHeight(100)
+        self.bridge_custom_textbox.setPlaceholderText(
+            strings._("gui_settings_bridge_custom_placeholder")
+        )
+
+        bridge_custom_textbox_options_layout = QtWidgets.QVBoxLayout()
+        bridge_custom_textbox_options_layout.addWidget(self.bridge_custom_textbox)
+
+        self.bridge_custom_textbox_options = QtWidgets.QWidget()
+        self.bridge_custom_textbox_options.setLayout(
+            bridge_custom_textbox_options_layout
+        )
+        self.bridge_custom_textbox_options.hide()
+
+        # Bridge settings layout
+        bridge_settings_layout = QtWidgets.QVBoxLayout()
+        bridge_settings_layout.addWidget(self.bridge_builtin_radio)
+        bridge_settings_layout.addWidget(self.bridge_builtin_dropdown)
+        bridge_settings_layout.addWidget(self.bridge_moat_radio)
+        bridge_settings_layout.addWidget(self.bridge_moat_textbox_options)
+        bridge_settings_layout.addWidget(self.bridge_custom_radio)
+        bridge_settings_layout.addWidget(self.bridge_custom_textbox_options)
+        self.bridge_settings = QtWidgets.QWidget()
+        self.bridge_settings.setLayout(bridge_settings_layout)
+
+        # Bridges layout/widget
+        bridges_layout = QtWidgets.QVBoxLayout()
+        bridges_layout.addWidget(bridges_label)
+        bridges_layout.addWidget(self.bridge_use_checkbox)
+        bridges_layout.addWidget(self.bridge_settings)
+
+        self.bridges = QtWidgets.QWidget()
+        self.bridges.setLayout(bridges_layout)
+
+        # Automatic
+        self.connection_type_automatic_radio = QtWidgets.QRadioButton(
+            strings._("gui_settings_connection_type_automatic_option")
+        )
+        self.connection_type_automatic_radio.toggled.connect(
+            self.connection_type_automatic_toggled
+        )
+
+        # Control port
+        self.connection_type_control_port_radio = QtWidgets.QRadioButton(
+            strings._("gui_settings_connection_type_control_port_option")
+        )
+        self.connection_type_control_port_radio.toggled.connect(
+            self.connection_type_control_port_toggled
+        )
+
+        connection_type_control_port_extras_label = QtWidgets.QLabel(
+            strings._("gui_settings_control_port_label")
+        )
+        self.connection_type_control_port_extras_address = QtWidgets.QLineEdit()
+        self.connection_type_control_port_extras_port = QtWidgets.QLineEdit()
+        connection_type_control_port_extras_layout = QtWidgets.QHBoxLayout()
+        connection_type_control_port_extras_layout.addWidget(
+            connection_type_control_port_extras_label
+        )
+        connection_type_control_port_extras_layout.addWidget(
+            self.connection_type_control_port_extras_address
+        )
+        connection_type_control_port_extras_layout.addWidget(
+            self.connection_type_control_port_extras_port
+        )
+
+        self.connection_type_control_port_extras = QtWidgets.QWidget()
+        self.connection_type_control_port_extras.setLayout(
+            connection_type_control_port_extras_layout
+        )
+        self.connection_type_control_port_extras.hide()
+
+        # Socket file
+        self.connection_type_socket_file_radio = QtWidgets.QRadioButton(
+            strings._("gui_settings_connection_type_socket_file_option")
+        )
+        self.connection_type_socket_file_radio.toggled.connect(
+            self.connection_type_socket_file_toggled
+        )
+
+        connection_type_socket_file_extras_label = QtWidgets.QLabel(
+            strings._("gui_settings_socket_file_label")
+        )
+        self.connection_type_socket_file_extras_path = QtWidgets.QLineEdit()
+        connection_type_socket_file_extras_layout = QtWidgets.QHBoxLayout()
+        connection_type_socket_file_extras_layout.addWidget(
+            connection_type_socket_file_extras_label
+        )
+        connection_type_socket_file_extras_layout.addWidget(
+            self.connection_type_socket_file_extras_path
+        )
+
+        self.connection_type_socket_file_extras = QtWidgets.QWidget()
+        self.connection_type_socket_file_extras.setLayout(
+            connection_type_socket_file_extras_layout
+        )
+        self.connection_type_socket_file_extras.hide()
+
+        # Tor SOCKS address and port
+        gui_settings_socks_label = QtWidgets.QLabel(
+            strings._("gui_settings_socks_label")
+        )
+        self.connection_type_socks_address = QtWidgets.QLineEdit()
+        self.connection_type_socks_port = QtWidgets.QLineEdit()
+        connection_type_socks_layout = QtWidgets.QHBoxLayout()
+        connection_type_socks_layout.addWidget(gui_settings_socks_label)
+        connection_type_socks_layout.addWidget(self.connection_type_socks_address)
+        connection_type_socks_layout.addWidget(self.connection_type_socks_port)
+
+        self.connection_type_socks = QtWidgets.QWidget()
+        self.connection_type_socks.setLayout(connection_type_socks_layout)
+        self.connection_type_socks.hide()
+
+        # Authentication options
+        self.authenticate_no_auth_checkbox = QtWidgets.QCheckBox(
+            strings._("gui_settings_authenticate_no_auth_option")
+        )
+        self.authenticate_no_auth_checkbox.toggled.connect(
+            self.authenticate_no_auth_toggled
+        )
+
+        authenticate_password_extras_label = QtWidgets.QLabel(
+            strings._("gui_settings_password_label")
+        )
+        self.authenticate_password_extras_password = QtWidgets.QLineEdit("")
+        authenticate_password_extras_layout = QtWidgets.QHBoxLayout()
+        authenticate_password_extras_layout.addWidget(
+            authenticate_password_extras_label
+        )
+        authenticate_password_extras_layout.addWidget(
+            self.authenticate_password_extras_password
+        )
+
+        self.authenticate_password_extras = QtWidgets.QWidget()
+        self.authenticate_password_extras.setLayout(authenticate_password_extras_layout)
+        self.authenticate_password_extras.hide()
+
+        # Group for Tor settings
+        tor_settings_layout = QtWidgets.QVBoxLayout()
+        tor_settings_layout.addWidget(self.connection_type_control_port_extras)
+        tor_settings_layout.addWidget(self.connection_type_socket_file_extras)
+        tor_settings_layout.addWidget(self.connection_type_socks)
+        tor_settings_layout.addWidget(self.authenticate_no_auth_checkbox)
+        tor_settings_layout.addWidget(self.authenticate_password_extras)
+        self.tor_settings_group = QtWidgets.QGroupBox(
+            strings._("gui_settings_controller_extras_label")
+        )
+        self.tor_settings_group.setLayout(tor_settings_layout)
+        self.tor_settings_group.hide()
+
+        # Put the radios into their own group so they are exclusive
+        connection_type_radio_group_layout = QtWidgets.QVBoxLayout()
+        connection_type_radio_group_layout.addWidget(self.connection_type_bundled_radio)
+        connection_type_radio_group_layout.addWidget(
+            self.connection_type_automatic_radio
+        )
+        connection_type_radio_group_layout.addWidget(
+            self.connection_type_control_port_radio
+        )
+        connection_type_radio_group_layout.addWidget(
+            self.connection_type_socket_file_radio
+        )
+        connection_type_radio_group_layout.addStretch()
+        connection_type_radio_group = QtWidgets.QGroupBox(
+            strings._("gui_settings_connection_type_label")
+        )
+        connection_type_radio_group.setLayout(connection_type_radio_group_layout)
+
+        # The Bridges options are not exclusive (enabling Bridges offers obfs4 or custom bridges)
+        connection_type_bridges_radio_group_layout = QtWidgets.QVBoxLayout()
+        connection_type_bridges_radio_group_layout.addWidget(self.bridges)
+        self.connection_type_bridges_radio_group = QtWidgets.QGroupBox(
+            strings._("gui_settings_tor_bridges")
+        )
+        self.connection_type_bridges_radio_group.setLayout(
+            connection_type_bridges_radio_group_layout
+        )
+        self.connection_type_bridges_radio_group.hide()
+
+        # Connection type layout
+        connection_type_layout = QtWidgets.QVBoxLayout()
+        connection_type_layout.addWidget(self.tor_settings_group)
+        connection_type_layout.addWidget(self.connection_type_bridges_radio_group)
+        connection_type_layout.addStretch()
+
+        # Settings are in columns
+        columns_layout = QtWidgets.QHBoxLayout()
+        columns_layout.addWidget(connection_type_radio_group)
+        columns_layout.addSpacing(20)
+        columns_layout.addLayout(connection_type_layout, stretch=1)
+        columns_wrapper = QtWidgets.QWidget()
+        columns_wrapper.setFixedHeight(400)
+        columns_wrapper.setLayout(columns_layout)
+
+        # Tor connection widget
+        self.tor_con = TorConnectionWidget(self.common, self.status_bar)
+        self.tor_con.success.connect(self.tor_con_success)
+        self.tor_con.fail.connect(self.tor_con_fail)
+        self.tor_con.hide()
+        self.tor_con_type = None
+
+        # Error label
+        self.error_label = QtWidgets.QLabel()
+        self.error_label.setStyleSheet(self.common.gui.css["tor_settings_error"])
+        self.error_label.setWordWrap(True)
+
+        # Buttons
+        self.test_tor_button = QtWidgets.QPushButton(
+            strings._("gui_settings_connection_type_test_button")
+        )
+        self.test_tor_button.clicked.connect(self.test_tor_clicked)
+        self.save_button = QtWidgets.QPushButton(strings._("gui_settings_button_save"))
+        self.save_button.clicked.connect(self.save_clicked)
+        buttons_layout = QtWidgets.QHBoxLayout()
+        buttons_layout.addWidget(self.error_label, stretch=1)
+        buttons_layout.addSpacing(20)
+        buttons_layout.addWidget(self.test_tor_button)
+        buttons_layout.addWidget(self.save_button)
+
+        # Main layout
+        main_layout = QtWidgets.QVBoxLayout()
+        main_layout.addWidget(columns_wrapper)
+        main_layout.addStretch()
+        main_layout.addWidget(self.tor_con)
+        main_layout.addStretch()
+        main_layout.addLayout(buttons_layout)
+        self.main_widget = QtWidgets.QWidget()
+        self.main_widget.setLayout(main_layout)
+
+        # Tabs are active label
+        active_tabs_label = QtWidgets.QLabel(
+            strings._("gui_settings_stop_active_tabs_label")
+        )
+        active_tabs_label.setAlignment(QtCore.Qt.AlignHCenter)
+
+        # Active tabs layout
+        active_tabs_layout = QtWidgets.QVBoxLayout()
+        active_tabs_layout.addStretch()
+        active_tabs_layout.addWidget(active_tabs_label)
+        active_tabs_layout.addStretch()
+        self.active_tabs_widget = QtWidgets.QWidget()
+        self.active_tabs_widget.setLayout(active_tabs_layout)
+
+        layout = QtWidgets.QVBoxLayout()
+        layout.addWidget(self.main_widget)
+        layout.addWidget(self.active_tabs_widget)
+        self.setLayout(layout)
+
+        self.active_tabs_changed(are_tabs_active)
+        self.reload_settings()
+
+    def reload_settings(self):
+        # Load settings, and fill them in
+        self.old_settings = Settings(self.common)
+        self.old_settings.load()
+
+        connection_type = self.old_settings.get("connection_type")
+        if connection_type == "bundled":
+            if self.connection_type_bundled_radio.isEnabled():
+                self.connection_type_bundled_radio.setChecked(True)
+            else:
+                # If bundled tor is disabled, fallback to automatic
+                self.connection_type_automatic_radio.setChecked(True)
+        elif connection_type == "automatic":
+            self.connection_type_automatic_radio.setChecked(True)
+        elif connection_type == "control_port":
+            self.connection_type_control_port_radio.setChecked(True)
+        elif connection_type == "socket_file":
+            self.connection_type_socket_file_radio.setChecked(True)
+        self.connection_type_control_port_extras_address.setText(
+            self.old_settings.get("control_port_address")
+        )
+        self.connection_type_control_port_extras_port.setText(
+            str(self.old_settings.get("control_port_port"))
+        )
+        self.connection_type_socket_file_extras_path.setText(
+            self.old_settings.get("socket_file_path")
+        )
+        self.connection_type_socks_address.setText(
+            self.old_settings.get("socks_address")
+        )
+        self.connection_type_socks_port.setText(
+            str(self.old_settings.get("socks_port"))
+        )
+        auth_type = self.old_settings.get("auth_type")
+        if auth_type == "no_auth":
+            self.authenticate_no_auth_checkbox.setCheckState(QtCore.Qt.Checked)
+        else:
+            self.authenticate_no_auth_checkbox.setChecked(QtCore.Qt.Unchecked)
+        self.authenticate_password_extras_password.setText(
+            self.old_settings.get("auth_password")
+        )
+
+        if self.old_settings.get("bridges_enabled"):
+            self.bridge_use_checkbox.setCheckState(QtCore.Qt.Checked)
+            self.bridge_settings.show()
+
+            bridges_type = self.old_settings.get("bridges_type")
+            if bridges_type == "built-in":
+                self.bridge_builtin_radio.setChecked(True)
+                self.bridge_builtin_dropdown.show()
+                self.bridge_moat_radio.setChecked(False)
+                self.bridge_moat_textbox_options.hide()
+                self.bridge_custom_radio.setChecked(False)
+                self.bridge_custom_textbox_options.hide()
+
+                bridges_builtin_pt = self.old_settings.get("bridges_builtin_pt")
+                if bridges_builtin_pt == "obfs4":
+                    self.bridge_builtin_dropdown.setCurrentText("obfs4")
+                elif bridges_builtin_pt == "meek-azure":
+                    self.bridge_builtin_dropdown.setCurrentText("meek-azure")
+                else:
+                    self.bridge_builtin_dropdown.setCurrentText("snowflake")
+
+                self.bridge_moat_textbox_options.hide()
+                self.bridge_custom_textbox_options.hide()
+
+            elif bridges_type == "moat":
+                self.bridge_builtin_radio.setChecked(False)
+                self.bridge_builtin_dropdown.hide()
+                self.bridge_moat_radio.setChecked(True)
+                self.bridge_moat_textbox_options.show()
+                self.bridge_custom_radio.setChecked(False)
+                self.bridge_custom_textbox_options.hide()
+
+            else:
+                self.bridge_builtin_radio.setChecked(False)
+                self.bridge_builtin_dropdown.hide()
+                self.bridge_moat_radio.setChecked(False)
+                self.bridge_moat_textbox_options.hide()
+                self.bridge_custom_radio.setChecked(True)
+                self.bridge_custom_textbox_options.show()
+
+            bridges_moat = self.old_settings.get("bridges_moat")
+            self.bridge_moat_textbox.document().setPlainText(bridges_moat)
+            bridges_custom = self.old_settings.get("bridges_custom")
+            self.bridge_custom_textbox.document().setPlainText(bridges_custom)
+
+        else:
+            self.bridge_use_checkbox.setCheckState(QtCore.Qt.Unchecked)
+            self.bridge_settings.hide()
+
+    def active_tabs_changed(self, are_tabs_active):
+        if are_tabs_active:
+            self.main_widget.hide()
+            self.active_tabs_widget.show()
+        else:
+            self.main_widget.show()
+            self.active_tabs_widget.hide()
+
+    def connection_type_bundled_toggled(self, checked):
+        """
+        Connection type bundled was toggled
+        """
+        self.common.log("TorSettingsTab", "connection_type_bundled_toggled")
+        if checked:
+            self.tor_settings_group.hide()
+            self.connection_type_socks.hide()
+            self.connection_type_bridges_radio_group.show()
+
+    def bridge_use_checkbox_state_changed(self, state):
+        """
+        'Use a bridge' checkbox changed
+        """
+        if state == QtCore.Qt.Checked:
+            self.bridge_settings.show()
+            self.bridge_builtin_radio.click()
+            self.bridge_builtin_dropdown.setCurrentText("obfs4")
+        else:
+            self.bridge_settings.hide()
+
+    def bridge_builtin_radio_toggled(self, checked):
+        """
+        'Select a built-in bridge' radio button toggled
+        """
+        if checked:
+            self.bridge_builtin_dropdown.show()
+            self.bridge_custom_textbox_options.hide()
+            self.bridge_moat_textbox_options.hide()
+
+    def bridge_builtin_dropdown_changed(self, selection):
+        """
+        Build-in bridge selection changed
+        """
+        if selection == "meek-azure":
+            # Alert the user about meek's costliness if it looks like they're turning it on
+            if not self.old_settings.get("bridges_builtin_pt") == "meek-azure":
+                Alert(
+                    self.common,
+                    strings._("gui_settings_meek_lite_expensive_warning"),
+                    QtWidgets.QMessageBox.Warning,
+                )
+
+    def bridge_moat_radio_toggled(self, checked):
+        """
+        Moat (request bridge) bridges option was toggled. If checked, show moat bridge options.
+        """
+        if checked:
+            self.bridge_builtin_dropdown.hide()
+            self.bridge_custom_textbox_options.hide()
+            self.bridge_moat_textbox_options.show()
+
+    def bridge_moat_button_clicked(self):
+        """
+        Request new bridge button clicked
+        """
+        self.common.log("TorSettingsTab", "bridge_moat_button_clicked")
+
+        moat_dialog = MoatDialog(self.common, self.meek)
+        moat_dialog.got_bridges.connect(self.bridge_moat_got_bridges)
+        moat_dialog.exec_()
+
+    def bridge_moat_got_bridges(self, bridges):
+        """
+        Got new bridges from moat
+        """
+        self.common.log("TorSettingsTab", "bridge_moat_got_bridges")
+        self.bridge_moat_textbox.document().setPlainText(bridges)
+        self.bridge_moat_textbox.show()
+
+    def bridge_custom_radio_toggled(self, checked):
+        """
+        Custom bridges option was toggled. If checked, show custom bridge options.
+        """
+        if checked:
+            self.bridge_builtin_dropdown.hide()
+            self.bridge_moat_textbox_options.hide()
+            self.bridge_custom_textbox_options.show()
+
+    def connection_type_automatic_toggled(self, checked):
+        """
+        Connection type automatic was toggled. If checked, hide authentication fields.
+        """
+        self.common.log("TorSettingsTab", "connection_type_automatic_toggled")
+        if checked:
+            self.tor_settings_group.hide()
+            self.connection_type_socks.hide()
+            self.connection_type_bridges_radio_group.hide()
+
+    def connection_type_control_port_toggled(self, checked):
+        """
+        Connection type control port was toggled. If checked, show extra fields
+        for Tor control address and port. If unchecked, hide those extra fields.
+        """
+        self.common.log("TorSettingsTab", "connection_type_control_port_toggled")
+        if checked:
+            self.tor_settings_group.show()
+            self.connection_type_control_port_extras.show()
+            self.connection_type_socks.show()
+            self.connection_type_bridges_radio_group.hide()
+        else:
+            self.connection_type_control_port_extras.hide()
+
+    def connection_type_socket_file_toggled(self, checked):
+        """
+        Connection type socket file was toggled. If checked, show extra fields
+        for socket file. If unchecked, hide those extra fields.
+        """
+        self.common.log("TorSettingsTab", "connection_type_socket_file_toggled")
+        if checked:
+            self.tor_settings_group.show()
+            self.connection_type_socket_file_extras.show()
+            self.connection_type_socks.show()
+            self.connection_type_bridges_radio_group.hide()
+        else:
+            self.connection_type_socket_file_extras.hide()
+
+    def authenticate_no_auth_toggled(self, checked):
+        """
+        Authentication option no authentication was toggled.
+        """
+        self.common.log("TorSettingsTab", "authenticate_no_auth_toggled")
+        if checked:
+            self.authenticate_password_extras.hide()
+        else:
+            self.authenticate_password_extras.show()
+
+    def test_tor_clicked(self):
+        """
+        Test Tor Settings button clicked. With the given settings, see if we can
+        successfully connect and authenticate to Tor.
+        """
+        self.common.log("TorSettingsTab", "test_tor_clicked")
+
+        self.error_label.setText("")
+
+        settings = self.settings_from_fields()
+        if not settings:
+            return
+
+        self.test_tor_button.hide()
+        self.save_button.hide()
+
+        self.test_onion = Onion(
+            self.common,
+            use_tmp_dir=True,
+            get_tor_paths=self.common.gui.get_tor_paths,
+        )
+
+        self.tor_con_type = "test"
+        self.tor_con.show()
+        self.tor_con.start(settings, True, self.test_onion)
+
+    def save_clicked(self):
+        """
+        Save button clicked. Save current settings to disk.
+        """
+        self.common.log("TorSettingsTab", "save_clicked")
+
+        self.error_label.setText("")
+
+        def changed(s1, s2, keys):
+            """
+            Compare the Settings objects s1 and s2 and return true if any values
+            have changed for the given keys.
+            """
+            for key in keys:
+                if s1.get(key) != s2.get(key):
+                    return True
+            return False
+
+        settings = self.settings_from_fields()
+        if settings:
+            # Save the new settings
+            settings.save()
+
+            # If Tor isn't connected, or if Tor settings have changed, Reinitialize
+            # the Onion object
+            reboot_onion = False
+            if not self.common.gui.local_only:
+                if self.common.gui.onion.is_authenticated():
+                    self.common.log(
+                        "TorSettingsTab", "save_clicked", "Connected to Tor"
+                    )
+
+                    if changed(
+                        settings,
+                        self.old_settings,
+                        [
+                            "connection_type",
+                            "control_port_address",
+                            "control_port_port",
+                            "socks_address",
+                            "socks_port",
+                            "socket_file_path",
+                            "auth_type",
+                            "auth_password",
+                            "bridges_enabled",
+                            "bridges_type",
+                            "bridges_builtin_pt",
+                            "bridges_moat",
+                            "bridges_custom",
+                        ],
+                    ):
+
+                        reboot_onion = True
+
+                else:
+                    self.common.log(
+                        "TorSettingsTab", "save_clicked", "Not connected to Tor"
+                    )
+                    # Tor isn't connected, so try connecting
+                    reboot_onion = True
+
+                # Do we need to reinitialize Tor?
+                if reboot_onion:
+                    # Tell the tabs that Tor is disconnected
+                    self.tor_is_disconnected.emit()
+
+                    # Reinitialize the Onion object
+                    self.common.log(
+                        "TorSettingsTab", "save_clicked", "rebooting the Onion"
+                    )
+                    self.common.gui.onion.cleanup()
+
+                    self.test_tor_button.hide()
+                    self.save_button.hide()
+
+                    self.tor_con_type = "save"
+                    self.tor_con.show()
+                    self.tor_con.start(settings)
+                else:
+                    self.close_this_tab.emit()
+            else:
+                self.close_this_tab.emit()
+
+    def tor_con_success(self):
+        """
+        Finished testing tor connection.
+        """
+        self.tor_con.hide()
+        self.test_tor_button.show()
+        self.save_button.show()
+
+        if self.tor_con_type == "test":
+            Alert(
+                self.common,
+                strings._("settings_test_success").format(
+                    self.test_onion.tor_version,
+                    self.test_onion.supports_ephemeral,
+                    self.test_onion.supports_stealth,
+                    self.test_onion.supports_v3_onions,
+                ),
+                title=strings._("gui_settings_connection_type_test_button"),
+            )
+            self.test_onion.cleanup()
+
+        elif self.tor_con_type == "save":
+            if (
+                self.common.gui.onion.is_authenticated()
+                and not self.tor_con.wasCanceled()
+            ):
+                # Tell the tabs that Tor is connected
+                self.tor_is_connected.emit()
+                # Close the tab
+                self.close_this_tab.emit()
+
+        self.tor_con_type = None
+
+    def tor_con_fail(self, msg):
+        """
+        Finished testing tor connection.
+        """
+        self.tor_con.hide()
+        self.test_tor_button.show()
+        self.save_button.show()
+
+        self.error_label.setText(msg)
+
+        if self.tor_con_type == "test":
+            self.test_onion.cleanup()
+
+        self.tor_con_type = None
+
+    def settings_from_fields(self):
+        """
+        Return a Settings object that's full of values from the settings dialog.
+        """
+        self.common.log("TorSettingsTab", "settings_from_fields")
+        settings = Settings(self.common)
+        settings.load()  # To get the last update timestamp
+
+        # Tor connection
+        if self.connection_type_bundled_radio.isChecked():
+            settings.set("connection_type", "bundled")
+        if self.connection_type_automatic_radio.isChecked():
+            settings.set("connection_type", "automatic")
+        if self.connection_type_control_port_radio.isChecked():
+            settings.set("connection_type", "control_port")
+        if self.connection_type_socket_file_radio.isChecked():
+            settings.set("connection_type", "socket_file")
+
+        settings.set(
+            "control_port_address",
+            self.connection_type_control_port_extras_address.text(),
+        )
+        settings.set(
+            "control_port_port", self.connection_type_control_port_extras_port.text()
+        )
+        settings.set(
+            "socket_file_path", self.connection_type_socket_file_extras_path.text()
+        )
+
+        settings.set("socks_address", self.connection_type_socks_address.text())
+        settings.set("socks_port", self.connection_type_socks_port.text())
+
+        if self.authenticate_no_auth_checkbox.checkState() == QtCore.Qt.Checked:
+            settings.set("auth_type", "no_auth")
+        else:
+            settings.set("auth_type", "password")
+
+        settings.set("auth_password", self.authenticate_password_extras_password.text())
+
+        # Whether we use bridges
+        if self.bridge_use_checkbox.checkState() == QtCore.Qt.Checked:
+            settings.set("bridges_enabled", True)
+
+            if self.bridge_builtin_radio.isChecked():
+                settings.set("bridges_type", "built-in")
+
+                selection = self.bridge_builtin_dropdown.currentText()
+                settings.set("bridges_builtin_pt", selection)
+
+            if self.bridge_moat_radio.isChecked():
+                settings.set("bridges_type", "moat")
+                moat_bridges = self.bridge_moat_textbox.toPlainText()
+                if (
+                    self.connection_type_bundled_radio.isChecked()
+                    and moat_bridges.strip() == ""
+                ):
+                    self.error_label.setText(
+                        strings._("gui_settings_moat_bridges_invalid")
+                    )
+                    return False
+
+                settings.set("bridges_moat", moat_bridges)
+
+            if self.bridge_custom_radio.isChecked():
+                settings.set("bridges_type", "custom")
+
+                new_bridges = []
+                bridges = self.bridge_custom_textbox.toPlainText().split("\n")
+                bridges_valid = False
+                for bridge in bridges:
+                    if bridge != "":
+                        # Check the syntax of the custom bridge to make sure it looks legitimate
+                        ipv4_pattern = re.compile(
+                            "(obfs4\s+)?(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]):([0-9]+)(\s+)([A-Z0-9]+)(.+)$"
+                        )
+                        ipv6_pattern = re.compile(
+                            "(obfs4\s+)?\[(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))\]:[0-9]+\s+[A-Z0-9]+(.+)$"
+                        )
+                        meek_lite_pattern = re.compile(
+                            "(meek_lite)(\s)+([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+)(\s)+([0-9A-Z]+)(\s)+url=(.+)(\s)+front=(.+)"
+                        )
+                        snowflake_pattern = re.compile(
+                            "(snowflake)(\s)+([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+)(\s)+([0-9A-Z]+)"
+                        )
+                        if (
+                            ipv4_pattern.match(bridge)
+                            or ipv6_pattern.match(bridge)
+                            or meek_lite_pattern.match(bridge)
+                            or snowflake_pattern.match(bridge)
+                        ):
+                            new_bridges.append(bridge)
+                            bridges_valid = True
+
+                if bridges_valid:
+                    new_bridges = "\n".join(new_bridges) + "\n"
+                    settings.set("bridges_custom", new_bridges)
+                else:
+                    self.error_label.setText(
+                        strings._("gui_settings_tor_bridges_invalid")
+                    )
+                    return False
+        else:
+            settings.set("bridges_enabled", False)
+
+        return settings
+
+    def closeEvent(self, e):
+        self.common.log("TorSettingsTab", "closeEvent")
+
+        # On close, if Tor isn't connected, then quit OnionShare altogether
+        if not self.common.gui.local_only:
+            if not self.common.gui.onion.is_authenticated():
+                self.common.log(
+                    "TorSettingsTab",
+                    "closeEvent",
+                    "Closing while not connected to Tor",
+                )
+
+                # Wait 1ms for the event loop to finish, then quit
+                QtCore.QTimer.singleShot(1, self.common.gui.qtapp.quit)
+
+    def settings_have_changed(self):
+        # Global settings have changed
+        self.common.log("TorSettingsTab", "settings_have_changed")
diff --git a/desktop/src/onionshare/widgets.py b/desktop/src/onionshare/widgets.py
index b396c43f..761df212 100644
--- a/desktop/src/onionshare/widgets.py
+++ b/desktop/src/onionshare/widgets.py
@@ -37,6 +37,7 @@ class Alert(QtWidgets.QMessageBox):
         icon=QtWidgets.QMessageBox.NoIcon,
         buttons=QtWidgets.QMessageBox.Ok,
         autostart=True,
+        title="OnionShare",
     ):
         super(Alert, self).__init__(None)
 
@@ -44,7 +45,7 @@ class Alert(QtWidgets.QMessageBox):
 
         self.common.log("Alert", "__init__")
 
-        self.setWindowTitle("OnionShare")
+        self.setWindowTitle(title)
         self.setWindowIcon(QtGui.QIcon(GuiCommon.get_resource_path("images/logo.png")))
         self.setText(message)
         self.setIcon(icon)