diff --git a/disable-reader.patch b/disable-reader.patch
index f1777e3..f1b1d11 100644
--- a/disable-reader.patch
+++ b/disable-reader.patch
@@ -27,7 +27,7 @@
    ["RecentWindow", "resource:///modules/RecentWindow.jsm"],
    ["SessionStore", "resource:///modules/sessionstore/SessionStore.jsm"],
    ["ShortcutUtils", "resource://gre/modules/ShortcutUtils.jsm"],
-@@ -4582,7 +4580,6 @@ var XULBrowserWindow = {
+@@ -4579,7 +4577,6 @@ var XULBrowserWindow = {
        }
      }
      UpdateBackForwardCommands(gBrowser.webNavigation);
@@ -35,7 +35,7 @@
  
      gGestureSupport.restoreRotationState();
  
-@@ -4883,9 +4880,6 @@ var TabsProgressListener = {
+@@ -4880,9 +4877,6 @@ var TabsProgressListener = {
      // Filter out location changes caused by anchor navigation
      // or history.push/pop/replaceState.
      if (aFlags & Ci.nsIWebProgressListener.LOCATION_CHANGE_SAME_DOCUMENT) {
@@ -47,7 +47,7 @@
  
 --- a/browser/base/content/browser.xul
 +++ b/browser/base/content/browser.xul
-@@ -766,10 +766,6 @@
+@@ -759,10 +759,6 @@
                         hidden="true"
                         tooltiptext="&pageReportIcon.tooltip;"
                         onmousedown="gPopupBlockerObserver.onReportButtonMousedown(event);"/>
diff --git a/disable-send-to-device.patch b/disable-send-to-device.patch
index 49bd86b..b722768 100644
--- a/disable-send-to-device.patch
+++ b/disable-send-to-device.patch
@@ -30,70 +30,6 @@
        <menuitem id="context-shareselect"
                  label="&shareSelect.label;"
                  accesskey="&shareSelect.accesskey;"
---- a/browser/base/content/browser.xul
-+++ b/browser/base/content/browser.xul
-@@ -104,13 +104,6 @@
-                 hidden="true"
-                 oncommand="gBrowser.openNonRemoteWindow(TabContextMenu.contextTab);"/>
- #endif
--      <menuseparator id="context_sendTabToDevice_separator" hidden="true"/>
--      <menu id="context_sendTabToDevice" label="&sendTabToDevice.label;"
--            accesskey="&sendTabToDevice.accesskey;" hidden="true">
--        <menupopup id="context_sendTabToDevicePopupMenu"
--                   onpopupshowing="gFxAccounts.populateSendTabToDevicesMenu(event.target, TabContextMenu.contextTab.linkedBrowser.currentURI.spec, TabContextMenu.contextTab.linkedBrowser.contentTitle);"/>
--      </menu>
--      <menuseparator/>
-       <menuitem id="context_reloadAllTabs" label="&reloadAllTabs.label;" accesskey="&reloadAllTabs.accesskey;"
-                 tbattr="tabbrowser-multiple-visible"
-                 oncommand="gBrowser.reloadAllTabs();"/>
---- a/browser/components/sessionstore/SessionStore.jsm
-+++ b/browser/components/sessionstore/SessionStore.jsm
-@@ -894,7 +894,6 @@ var SessionStoreInternal = {
-         SessionStoreInternal._resetLocalTabRestoringState(tab);
-         SessionStoreInternal.restoreNextTab();
- 
--        this._sendTabRestoredNotification(tab, data.isRemotenessUpdate);
-         break;
-       case "SessionStore:crashedTabRevived":
-         // The browser was revived by navigating to a different page
-@@ -4272,22 +4271,6 @@ var SessionStoreInternal = {
-     aWindow.dispatchEvent(event);
-   },
- 
--  /**
--   * Dispatch the SSTabRestored event for the given tab.
--   * @param aTab
--   *        The tab which has been restored
--   * @param aIsRemotenessUpdate
--   *        True if this tab was restored due to flip from running from
--   *        out-of-main-process to in-main-process or vice-versa.
--   */
--  _sendTabRestoredNotification(aTab, aIsRemotenessUpdate) {
--    let event = aTab.ownerDocument.createEvent("CustomEvent");
--    event.initCustomEvent("SSTabRestored", true, false, {
--      isRemotenessUpdate: aIsRemotenessUpdate,
--    });
--    aTab.dispatchEvent(event);
--  },
--
-   /**
-    * @param aWindow
-    *        Window reference
---- a/browser/locales/en-US/chrome/browser/accounts.properties
-+++ b/browser/locales/en-US/chrome/browser/accounts.properties
-@@ -35,10 +35,6 @@ syncStartNotification.body2 = %S will begin syncing momentarily.
- deviceDisconnectedNotification.title = Sync disconnected
- deviceDisconnectedNotification.body = This computer has been successfully disconnected from Firefox Sync.
- 
--# LOCALIZATION NOTE (sendTabToAllDevices.menuitem)
--# Displayed in the Send Tabs context menu when right clicking a tab, a page or a link.
--sendTabToAllDevices.menuitem = All Devices
--
- # LOCALIZATION NOTE (tabArrivingNotification.title, tabArrivingNotificationWithDevice.title,
- # tabsArrivingNotification.title, unnamedTabsArrivingNotification2.body,
- # unnamedTabsArrivingNotificationMultiple2.body, unnamedTabsArrivingNotificationNoDevice.body)
- diff --git a/browser/base/content/browser-fxaccounts.js b/browser/base/content/browser-fxaccounts.js
-index 0bbce3e..205e28b 100644
 --- a/browser/base/content/browser-fxaccounts.js
 +++ b/browser/base/content/browser-fxaccounts.js
 @@ -371,81 +371,13 @@ var gFxAccounts = {
@@ -178,4 +114,65 @@ index 0bbce3e..205e28b 100644
  };
  
  XPCOMUtils.defineLazyGetter(gFxAccounts, "FxAccountsCommon", function () {
-
+--- a/browser/base/content/browser.xul
++++ b/browser/base/content/browser.xul
+@@ -104,13 +104,6 @@
+                 hidden="true"
+                 oncommand="gBrowser.openNonRemoteWindow(TabContextMenu.contextTab);"/>
+ #endif
+-      <menuseparator id="context_sendTabToDevice_separator" hidden="true"/>
+-      <menu id="context_sendTabToDevice" label="&sendTabToDevice.label;"
+-            accesskey="&sendTabToDevice.accesskey;" hidden="true">
+-        <menupopup id="context_sendTabToDevicePopupMenu"
+-                   onpopupshowing="gFxAccounts.populateSendTabToDevicesMenu(event.target, TabContextMenu.contextTab.linkedBrowser.currentURI.spec, TabContextMenu.contextTab.linkedBrowser.contentTitle);"/>
+-      </menu>
+-      <menuseparator/>
+       <menuitem id="context_reloadAllTabs" label="&reloadAllTabs.label;" accesskey="&reloadAllTabs.accesskey;"
+                 tbattr="tabbrowser-multiple-visible"
+                 oncommand="gBrowser.reloadAllTabs();"/>
+--- a/browser/components/sessionstore/SessionStore.jsm
++++ b/browser/components/sessionstore/SessionStore.jsm
+@@ -894,7 +894,6 @@ var SessionStoreInternal = {
+         SessionStoreInternal._resetLocalTabRestoringState(tab);
+         SessionStoreInternal.restoreNextTab();
+ 
+-        this._sendTabRestoredNotification(tab, data.isRemotenessUpdate);
+         break;
+       case "SessionStore:crashedTabRevived":
+         // The browser was revived by navigating to a different page
+@@ -4272,22 +4271,6 @@ var SessionStoreInternal = {
+     aWindow.dispatchEvent(event);
+   },
+ 
+-  /**
+-   * Dispatch the SSTabRestored event for the given tab.
+-   * @param aTab
+-   *        The tab which has been restored
+-   * @param aIsRemotenessUpdate
+-   *        True if this tab was restored due to flip from running from
+-   *        out-of-main-process to in-main-process or vice-versa.
+-   */
+-  _sendTabRestoredNotification(aTab, aIsRemotenessUpdate) {
+-    let event = aTab.ownerDocument.createEvent("CustomEvent");
+-    event.initCustomEvent("SSTabRestored", true, false, {
+-      isRemotenessUpdate: aIsRemotenessUpdate,
+-    });
+-    aTab.dispatchEvent(event);
+-  },
+-
+   /**
+    * @param aWindow
+    *        Window reference
+--- a/browser/locales/en-US/chrome/browser/accounts.properties
++++ b/browser/locales/en-US/chrome/browser/accounts.properties
+@@ -35,10 +35,6 @@ syncStartNotification.body2 = %S will begin syncing momentarily.
+ deviceDisconnectedNotification.title = Sync disconnected
+ deviceDisconnectedNotification.body = This computer has been successfully disconnected from Firefox Sync.
+ 
+-# LOCALIZATION NOTE (sendTabToAllDevices.menuitem)
+-# Displayed in the Send Tabs context menu when right clicking a tab, a page or a link.
+-sendTabToAllDevices.menuitem = All Devices
+-
+ # LOCALIZATION NOTE (tabArrivingNotification.title, tabArrivingNotificationWithDevice.title,
+ # tabsArrivingNotification.title, unnamedTabsArrivingNotification2.body,
+ # unnamedTabsArrivingNotificationMultiple2.body, unnamedTabsArrivingNotificationNoDevice.body)
diff --git a/enable-legacy-addons.patch b/enable-legacy-addons.patch
deleted file mode 100644
index 0e1b3d0..0000000
--- a/enable-legacy-addons.patch
+++ /dev/null
@@ -1,36 +0,0 @@
---- a/browser/confvars.sh
-+++ b/browser/confvars.sh
-@@ -63,7 +63,8 @@
- MOZ_PROFILE_MIGRATOR=1
- 
- # Enable checking that add-ons are signed by the trusted root
--MOZ_ADDON_SIGNING=1
-+MOZ_ADDON_SIGNING=0
-+MOZ_ALLOW_LEGACY_EXTENSIONS=1
- 
- # Include the DevTools client, not just the server (which is the default)
- MOZ_DEVTOOLS=all
---- a/browser/app/profile/firefox.js
-+++ b/browser/app/profile/firefox.js
-@@ -89,10 +89,10 @@
- #endif
- 
- // Extensions that should not be flagged as legacy in about:addons
--pref("extensions.legacy.exceptions", "{972ce4c6-7e08-4474-a285-3208198ce6fd},testpilot@cliqz.com,@testpilot-containers,jid1-NeEaf3sAHdKHPA@jetpack,@activity-streams,pulse@mozilla.com,@testpilot-addon,@min-vid,tabcentertest1@mozilla.com,snoozetabs@mozilla.com,speaktome@mozilla.com,hoverpad@mozilla.com");
-+pref("extensions.legacy.exceptions", "");
- 
- // Require signed add-ons by default
--pref("xpinstall.signatures.required", true);
-+pref("xpinstall.signatures.required", false);
- pref("xpinstall.signatures.devInfoURL", "https://wiki.mozilla.org/Addons/Extension_Signing");
- 
- // Dictionary download preference
-@@ -1568,7 +1568,7 @@
- pref("extensions.allow-non-mpc-extensions", false);
- #endif
- 
--pref("extensions.legacy.enabled", false);
-+pref("extensions.legacy.enabled", true);
- 
- // Enable blocking of e10s and e10s-multi for add-on users on beta/release.
- #if defined(RELEASE_OR_BETA) && !defined(MOZ_DEV_EDITION)
diff --git a/mitigate-spectre.patch b/mitigate-spectre.patch
index 57e3ff7..3f5ef97 100644
--- a/mitigate-spectre.patch
+++ b/mitigate-spectre.patch
@@ -1,6 +1,6 @@
 --- a/modules/libpref/init/all.js
 +++ b/modules/libpref/init/all.js
-@@ -1284,12 +1284,7 @@ pref("javascript.options.mem.gc_max_empty_chunk_count", 30);
+@@ -1269,12 +1269,7 @@ pref("javascript.options.mem.gc_max_empty_chunk_count", 30);
  
  pref("javascript.options.showInConsole", false);
  
diff --git a/preferences.patch b/preferences.patch
index 3e5813b..71323a6 100644
--- a/preferences.patch
+++ b/preferences.patch
@@ -47,7 +47,7 @@
  
  #ifndef XP_MACOSX
  pref("browser.helperApps.deleteTempFileOnExit", true);
-@@ -389,7 +389,7 @@ pref("browser.search.reset.enabled", true);
+@@ -388,7 +388,7 @@ pref("browser.search.reset.enabled", true);
  pref("browser.sessionhistory.max_entries", 50);
  
  // Built-in default permissions.
@@ -56,7 +56,7 @@
  
  // handle links targeting new windows
  // 1=current window/tab, 2=new window, 3=new tab in most recent window
-@@ -419,7 +419,7 @@ pref("browser.link.open_newwindow.disabled_in_fullscreen", false);
+@@ -418,7 +418,7 @@ pref("browser.link.open_newwindow.disabled_in_fullscreen", false);
  // Tabbed browser
  pref("browser.tabs.closeWindowWithLastTab", true);
  pref("browser.tabs.insertRelatedAfterCurrent", true);
@@ -65,7 +65,7 @@
  pref("browser.tabs.warnOnCloseOtherTabs", true);
  pref("browser.tabs.warnOnOpen", true);
  pref("browser.tabs.maxOpenBeforeWarn", 15);
-@@ -596,7 +596,7 @@ pref("browser.xul.error_pages.enabled", true);
+@@ -595,7 +595,7 @@ pref("browser.xul.error_pages.enabled", true);
  pref("browser.xul.error_pages.expert_bad_cert", false);
  
  // Enable captive portal detection.
@@ -74,7 +74,7 @@
  
  // If true, network link events will change the value of navigator.onLine
  pref("network.manage-offline-status", true);
-@@ -774,7 +774,7 @@ pref("browser.geolocation.warning.infoURL", "https://www.mozilla.org/%LOCALE%/fi
+@@ -773,7 +773,7 @@ pref("browser.geolocation.warning.infoURL", "https://www.mozilla.org/%LOCALE%/fi
  
  pref("browser.EULA.version", 3);
  pref("browser.rights.version", 3);
@@ -83,7 +83,7 @@
  
  #ifdef DEBUG
  // Don't show the about:rights notification in debug builds.
-@@ -1150,18 +1150,18 @@ pref("browser.menu.showCharacterEncoding", "chrome://browser/locale/browser.prop
+@@ -1149,18 +1149,18 @@ pref("browser.menu.showCharacterEncoding", "chrome://browser/locale/browser.prop
  pref("prompts.tab_modal.enabled", true);
  
  // Activates preloading of the new tab url.
@@ -106,7 +106,7 @@
  
  // enables Activity Stream inspired layout
  pref("browser.newtabpage.compact", false);
-@@ -1176,10 +1176,10 @@ pref("browser.newtabpage.rows", 3);
+@@ -1175,10 +1175,10 @@ pref("browser.newtabpage.rows", 3);
  pref("browser.newtabpage.columns", 5);
  
  // directory tiles download URL
@@ -119,7 +119,7 @@
  
  // activates the remote-hosted newtab page
  pref("browser.newtabpage.remote", false);
-@@ -1207,10 +1207,10 @@ pref("toolkit.startup.max_resumed_crashes", 3);
+@@ -1206,10 +1206,10 @@ pref("toolkit.startup.max_resumed_crashes", 3);
  // Completely disable pdf.js as an option to preview pdfs within firefox.
  // Note: if this is not disabled it does not necessarily mean pdf.js is the pdf
  // handler just that it is an option.
@@ -132,7 +132,7 @@
  // The values of preferredAction and alwaysAskBeforeHandling before pdf.js
  // became the default.
  pref("pdfjs.previousHandler.preferredAction", 0);
-@@ -1248,38 +1248,11 @@ pref("plain_text.wrap_long_lines", true);
+@@ -1247,38 +1247,11 @@ pref("plain_text.wrap_long_lines", true);
  // before content.
  pref("dom.debug.propagate_gesture_events_through_content", false);
  
@@ -173,7 +173,7 @@
  
  // CustomizableUI debug logging.
  pref("browser.uiCustomization.debug", false);
-@@ -1323,8 +1296,8 @@ pref("identity.sync.tokenserver.uri", "https://token.services.mozilla.com/1.0/sy
+@@ -1322,8 +1295,8 @@ pref("identity.sync.tokenserver.uri", "https://token.services.mozilla.com/1.0/sy
  
  // URLs for promo links to mobile browsers. Note that consumers are expected to
  // append a value for utm_campaign.
@@ -184,7 +184,7 @@
  
  // Migrate any existing Firefox Account data from the default profile to the
  // Developer Edition profile.
-@@ -1340,7 +1313,6 @@ pref("ui.key.menuAccessKeyFocuses", true);
+@@ -1339,7 +1312,6 @@ pref("ui.key.menuAccessKeyFocuses", true);
  #endif
  
  // Encrypted media extensions.
@@ -192,7 +192,7 @@
  // On Linux EME is visible but disabled by default. This is so that the
  // "Play DRM content" checkbox in the Firefox UI is unchecked by default.
  // DRM requires downloading and installing proprietary binaries, which
-@@ -1349,10 +1321,7 @@ pref("ui.key.menuAccessKeyFocuses", true);
+@@ -1348,10 +1320,7 @@ pref("ui.key.menuAccessKeyFocuses", true);
  // enable DRM, whereupon the EME plugin binaries will be downloaded if
  // permission is granted.
  pref("media.eme.enabled", false);
@@ -204,7 +204,7 @@
  
  // Decode using Gecko Media Plugins in <video>, if a system decoder is not
  // availble and the preferred GMP is available.
-@@ -1366,7 +1335,7 @@ pref("media.gmp.decoder.h264", 2);
+@@ -1365,7 +1334,7 @@ pref("media.gmp.decoder.h264", 2);
  
  // Whether we should run a test-pattern through EME GMPs before assuming they'll
  // decode H.264.
@@ -213,7 +213,7 @@
  
  // Note: when media.gmp-*.visible is true, provided we're running on a
  // supported platform/OS version, the corresponding CDM appears in the
-@@ -1376,19 +1345,15 @@ pref("media.gmp.trial-create.enabled", true);
+@@ -1375,19 +1344,15 @@ pref("media.gmp.trial-create.enabled", true);
  // to enable the CDM if its disabled; it's as if the keysystem is completely
  // unsupported.
  
@@ -235,7 +235,7 @@
  
  // Play with different values of the decay time and get telemetry,
  // 0 means to randomize (and persist) the experiment value in users' profiles,
-@@ -1404,25 +1369,21 @@ pref("browser.translation.engine", "bing");
+@@ -1403,25 +1368,21 @@ pref("browser.translation.engine", "bing");
  
  // Telemetry settings.
  // Determines if Telemetry pings can be archived locally.