Merge branch 'master' into Sync-weave

14 files changed, 106 insertions, 137 deletions

diff --git a/application/palemoon/app/profile/palemoon.js b/application/palemoon/app/profile/palemoon.js
index 3df5d71944..bd1b62cc3d 100644
--- a/application/palemoon/app/profile/palemoon.js
+++ b/application/palemoon/app/profile/palemoon.js
@@ -1089,8 +1089,6 @@ pref("browser.pagethumbnails.capturing_disabled", false);
 // enables showing basic placeholders for missing thumbnails
 pref("browser.newtabpage.thumbnailPlaceholder", false);
 
-pref("privacy.usercontext.about_newtab_segregation.enabled", false);
-
 // number of columns of newtab grid
 pref("browser.newtabpage.columns", 4);
 
@@ -1121,6 +1119,9 @@ pref("security.csp.speccompliant", true);
 // Block insecure active content on https pages
 pref("security.mixed_content.block_active_content", true);
 
+// Disable Microsoft Family Safety MitM support
+pref("security.family_safety.mode", 0);
+
 // Override the Gecko-default value of false for Pale Moon.
 pref("plain_text.wrap_long_lines", true);
 
diff --git a/application/palemoon/base/content/aboutDialog.xul b/application/palemoon/base/content/aboutDialog.xul
index a34923a0a9..6edfc21555 100644
--- a/application/palemoon/base/content/aboutDialog.xul
+++ b/application/palemoon/base/content/aboutDialog.xul
@@ -24,9 +24,6 @@
         id="PMaboutDialog"
         windowtype="Browser:About"
         onload="init(event);"
-#ifdef MOZ_UPDATER
-        onunload="onUnload(event);"
-#endif
 #ifdef XP_MACOSX
         inwindowmenu="false"
 #else
diff --git a/application/palemoon/base/content/browser-menudragging.js b/application/palemoon/base/content/browser-menudragging.js
index cf26b2ba42..f3f00d72cd 100644
--- a/application/palemoon/base/content/browser-menudragging.js
+++ b/application/palemoon/base/content/browser-menudragging.js
@@ -52,11 +52,9 @@ var browserMenuDragging = {
 
   initPref: function(){
     this.STAY_OPEN_ONDRAGEXIT =
-          this.getPref('browser.menu.dragging.stayOpen',
-                       'bool', false);
+          Services.prefs.getBoolPref('browser.menu.dragging.stayOpen', false);
     this.DEBUG =
-          this.getPref('browser.menu.dragging.debug',
-                       'bool', false);
+          Services.prefs.getBoolPref('browser.menu.dragging.debug', false);
   },
 
   //delayed startup
@@ -291,26 +289,6 @@ var browserMenuDragging = {
       .logStringMessage(aMsg);
   },
 
-  getPref: function(aPrefString, aPrefType, aDefault){
-    var xpPref = Components.classes["@mozilla.org/preferences-service;1"]
-                  .getService(Components.interfaces.nsIPrefService);
-    try{
-      switch (aPrefType){
-        case 'complex':
-          return xpPref.getComplexValue(aPrefString, Components.interfaces.nsILocalFile); break;
-        case 'str':
-          return xpPref.getCharPref(aPrefString).toString(); break;
-        case 'int':
-          return xpPref.getIntPref(aPrefString); break;
-        case 'bool':
-        default:
-          return xpPref.getBoolPref(aPrefString); break;
-      }
-    }catch(e){
-    }
-    return aDefault;
-  },
-
   setPref: function(aPrefString, aPrefType, aValue){
     var xpPref = Components.classes["@mozilla.org/preferences-service;1"]
                   .getService(Components.interfaces.nsIPrefService);
diff --git a/application/palemoon/base/content/browser.js b/application/palemoon/base/content/browser.js
index 4e753d4228..7672fa3a82 100644
--- a/application/palemoon/base/content/browser.js
+++ b/application/palemoon/base/content/browser.js
@@ -1147,7 +1147,7 @@ var gBrowserInit = {
 
     // Setup click-and-hold gestures access to the session history
     // menus if global click-and-hold isn't turned on
-    if (!getBoolPref("ui.click_hold_context_menus", false))
+    if (!Services.prefs.getBoolPref("ui.click_hold_context_menus", false))
       SetClickAndHoldHandlers();
 
     // Initialize the full zoom setting.
@@ -1783,7 +1783,7 @@ function BrowserGoHome(aEvent) {
   case "tabshifted":
   case "tab":
     urls = homePage.split("|");
-    var loadInBackground = getBoolPref("browser.tabs.loadBookmarksInBackground", false);
+    var loadInBackground = Services.prefs.getBoolPref("browser.tabs.loadBookmarksInBackground", false);
     gBrowser.loadTabs(urls, loadInBackground);
     break;
   case "window":
@@ -3402,7 +3402,7 @@ function BrowserCustomizeToolbar() {
   TabsInTitlebar.allowedBy("customizing-toolbars", false);
 
   var customizeURL = "chrome://global/content/customizeToolbar.xul";
-  gCustomizeSheet = getBoolPref("toolbar.customization.usesheet", false);
+  gCustomizeSheet = Services.prefs.getBoolPref("toolbar.customization.usesheet", false);
 
   if (gCustomizeSheet) {
     let sheetFrame = document.createElement("iframe");
@@ -3486,7 +3486,7 @@ function BrowserToolboxCustomizeDone(aToolboxChanged) {
   cmd.removeAttribute("disabled");
 
   // make sure to re-enable click-and-hold
-  if (!getBoolPref("ui.click_hold_context_menus", false))
+  if (!Services.prefs.getBoolPref("ui.click_hold_context_menus", false))
     SetClickAndHoldHandlers();
 
   gBrowser.selectedBrowser.focus();
@@ -5338,9 +5338,6 @@ function handleDroppedLink(event, urlOrLinks, name)
 
   let lastLocationChange = gBrowser.selectedBrowser.lastLocationChange;
 
-  let userContextId = gBrowser.selectedBrowser
-                      .getAttribute("usercontextid") || 0;
-
   let inBackground = Services.prefs.getBoolPref("browser.tabs.loadInBackground");
   if (event.shiftKey)
     inBackground = !inBackground;
@@ -5359,7 +5356,6 @@ function handleDroppedLink(event, urlOrLinks, name)
         replace: true,
         allowThirdPartyFixup: false,
         postDatas,
-        userContextId,
       });
     }
   });
diff --git a/application/palemoon/base/content/content.js b/application/palemoon/base/content/content.js
index 653dac3e3f..211a24a8bb 100644
--- a/application/palemoon/base/content/content.js
+++ b/application/palemoon/base/content/content.js
@@ -139,7 +139,6 @@ var handleContentContextMenu = function (event) {
   let selectionInfo = BrowserUtils.getSelectionDetails(content);
 
   let loadContext = docShell.QueryInterface(Ci.nsILoadContext);
-  let userContextId = loadContext.originAttributes.userContextId;
 
   let browser = docShell.chromeEventHandler;
   let mainWin = browser.ownerGlobal;
@@ -160,7 +159,6 @@ var handleContentContextMenu = function (event) {
     selectionInfo: selectionInfo,
     loginFillInfo,
     parentAllowsMixedContent,
-    userContextId,
   };
 }
 
diff --git a/application/palemoon/base/content/tabbrowser.xml b/application/palemoon/base/content/tabbrowser.xml
index cbe029af03..868179b5d5 100644
--- a/application/palemoon/base/content/tabbrowser.xml
+++ b/application/palemoon/base/content/tabbrowser.xml
@@ -737,8 +737,7 @@
 
                 let autocomplete = this.mTabBrowser._placesAutocomplete;
                 if (this.mBrowser.registeredOpenURI) {
-                  autocomplete.unregisterOpenPage(this.mBrowser.registeredOpenURI,
-                                                  this.mBrowser.getAttribute("usercontextid") || 0);
+                  autocomplete.unregisterOpenPage(this.mBrowser.registeredOpenURI);
                   delete this.mBrowser.registeredOpenURI;
                 }
                 // Tabs in private windows aren't registered as "Open" so
@@ -746,8 +745,7 @@
                 if (!isBlankPageURL(aLocation.spec) &&
                     (!PrivateBrowsingUtils.isWindowPrivate(window) ||
                     PrivateBrowsingUtils.permanentPrivateBrowsing)) {
-                  autocomplete.registerOpenPage(aLocation,
-                                                this.mBrowser.getAttribute("usercontextid") || 0);
+                  autocomplete.registerOpenPage(aLocation);
                   this.mBrowser.registeredOpenURI = aLocation;
                 }
               }
@@ -1383,7 +1381,6 @@
           let aTargetTab;
           let aNewIndex = -1;
           let aPostDatas = [];
-          let aUserContextId;
           if (arguments.length == 2 &&
               typeof arguments[1] == "object") {
             let params = arguments[1];
@@ -1394,7 +1391,6 @@
             aNewIndex             = typeof params.newIndex === "number" ?
                                     params.newIndex : aNewIndex;
             aPostDatas            = params.postDatas || aPostDatas;
-            aUserContextId        = params.userContextId;
           }
 
           if (!aURIs.length)
@@ -1443,8 +1439,7 @@
               ownerTab: owner,
               skipAnimation: multiple,
               allowThirdPartyFixup: aAllowThirdPartyFixup,
-              postData: aPostDatas[0],
-              userContextId: aUserContextId
+              postData: aPostDatas[0]
             });
             if (aNewIndex !== -1) {
               this.moveTabTo(firstTabAdded, aNewIndex);
@@ -1457,8 +1452,7 @@
             let tab = this.addTab(aURIs[i], {
               skipAnimation: true,
               allowThirdPartyFixup: aAllowThirdPartyFixup,
-              postData: aPostDatas[i],
-              userContextId: aUserContextId
+              postData: aPostDatas[i]
             });
             if (targetTabIndex !== -1)
               this.moveTabTo(tab, ++tabNum);
@@ -2059,8 +2053,7 @@
             this.mTabListeners[aTab._tPos].destroy();
 
             if (browser.registeredOpenURI && !aTabWillBeMoved) {
-              this._placesAutocomplete.unregisterOpenPage(browser.registeredOpenURI,
-                                                          browser.getAttribute("usercontextid") || 0);
+              this._placesAutocomplete.unregisterOpenPage(browser.registeredOpenURI);
               delete browser.registeredOpenURI;
             }
 
@@ -2428,8 +2421,7 @@
           <![CDATA[
             // If the current URI is registered as open remove it from the list.
             if (aOurBrowser.registeredOpenURI) {
-              this._placesAutocomplete.unregisterOpenPage(aOurBrowser.registeredOpenURI,
-                                                          aOurBrowser.getAttribute("usercontextid") || 0);
+              this._placesAutocomplete.unregisterOpenPage(aOurBrowser.registeredOpenURI);
               delete aOurBrowser.registeredOpenURI;
             }
 
@@ -3339,8 +3331,7 @@
           for (var i = 0; i < this.mTabListeners.length; ++i) {
             let browser = this.getBrowserAtIndex(i);
             if (browser.registeredOpenURI) {
-              this._placesAutocomplete.unregisterOpenPage(browser.registeredOpenURI,
-                                                          browser.getAttribute("usercontextid") || 0);
+              this._placesAutocomplete.unregisterOpenPage(browser.registeredOpenURI);
               delete browser.registeredOpenURI;
             }
             browser.webProgress.removeProgressListener(this.mTabFilters[i]);
@@ -4799,8 +4790,6 @@
             inBackground = !inBackground;
 
           let targetTab = this._getDragTargetTab(event);
-          let userContextId = this.selectedItem
-                              .getAttribute("usercontextid") || 0;
           let replace = !(!targetTab || dropEffect == "copy");
           let newIndex = this._getDropIndex(event);
           let urls = links.map(link => link.url);
@@ -4810,7 +4799,6 @@
             allowThirdPartyFixup: true,
             targetTab,
             newIndex,
-            userContextId,
           });
         }
 
diff --git a/application/palemoon/base/content/utilityOverlay.js b/application/palemoon/base/content/utilityOverlay.js
index fe148ad04a..c2a8baeed5 100644
--- a/application/palemoon/base/content/utilityOverlay.js
+++ b/application/palemoon/base/content/utilityOverlay.js
@@ -75,16 +75,6 @@ function openTopWin(url) {
   openUILinkIn(url, "current");
 }
 
-function getBoolPref(prefname, def)
-{
-  try {
-    return Services.prefs.getBoolPref(prefname);
-  }
-  catch(er) {
-    return def;
-  }
-}
-
 /* openUILink handles clicks on UI elements that cause URLs to load.
  *
  * As the third argument, you may pass an object with the same properties as
@@ -151,7 +141,7 @@ function whereToOpenLink( e, ignoreButton, ignoreAlt )
 
   // ignoreButton allows "middle-click paste" to use function without always opening in a new window.
   var middle = !ignoreButton && e.button == 1;
-  var middleUsesTabs = getBoolPref("browser.tabs.opentabfor.middleclick", true);
+  var middleUsesTabs = Services.prefs.getBoolPref("browser.tabs.opentabfor.middleclick", true);
 
   // Don't do anything special with right-mouse clicks.  They're probably clicks on context menu items.
 
@@ -162,7 +152,7 @@ function whereToOpenLink( e, ignoreButton, ignoreAlt )
 #endif
     return shift ? "tabshifted" : "tab";
 
-  if (alt && getBoolPref("browser.altClickSave", false))
+  if (alt && Services.prefs.getBoolPref("browser.altClickSave", false))
     return "save";
 
   if (shift || (middle && !middleUsesTabs))
@@ -334,7 +324,7 @@ function openLinkIn(url, where, params) {
   if (loadInBackground == null) {
     loadInBackground = aFromChrome ?
                          false :
-                         getBoolPref("browser.tabs.loadInBackground");
+                         Services.prefs.getBoolPref("browser.tabs.loadInBackground");
   }
 
   let uriObj;
@@ -515,7 +505,7 @@ function getShellService()
 
 function isBidiEnabled() {
   // first check the pref.
-  if (getBoolPref("bidi.browser.ui", false))
+  if (Services.prefs.getBoolPref("bidi.browser.ui", false))
     return true;
 
   // if the pref isn't set, check for an RTL locale and force the pref to true
@@ -673,7 +663,7 @@ function openAboutDialog() {
 
 function openPreferences(paneID, extraArgs)
 {
-  var instantApply = getBoolPref("browser.preferences.instantApply", false);
+  var instantApply = Services.prefs.getBoolPref("browser.preferences.instantApply", false);
   var features = "chrome,titlebar,toolbar,centerscreen" + (instantApply ? ",dialog=no" : ",modal");
 
   var win = Services.wm.getMostRecentWindow("Browser:Preferences");
@@ -854,7 +844,7 @@ function openHelpLink(aHelpTopic, aCalledFromModal) {
 function openPrefsHelp() {
   // non-instant apply prefwindows are usually modal, so we can't open in the topmost window, 
   // since its probably behind the window.
-  var instantApply = getBoolPref("browser.preferences.instantApply");
+  var instantApply = Services.prefs.getBoolPref("browser.preferences.instantApply");
 
   var helpTopic = document.getElementsByTagName("prefwindow")[0].currentPane.helpTopic;
   openHelpLink(helpTopic, !instantApply);
diff --git a/application/palemoon/branding/shared/pref/uaoverrides.inc b/application/palemoon/branding/shared/pref/uaoverrides.inc
index 5679566408..36a0ae1453 100644
--- a/application/palemoon/branding/shared/pref/uaoverrides.inc
+++ b/application/palemoon/branding/shared/pref/uaoverrides.inc
@@ -57,12 +57,16 @@ pref("@GUAO_PREF@.www.amazon.com","Mozilla/5.0 (@OS_SLICE@ rv:45.9) @GK_SLICE@ F
 pref("@GUAO_PREF@.soundcloud.com","Mozilla/5.0 (@OS_SLICE@ rv:@GRE_VERSION@) @GRE_DATE_SLICE@ @PM_SLICE@");

 // Daily motion only likes strict Firefox UAs

 pref("@GUAO_PREF@.dailymotion.com","Mozilla/5.0 (@OS_SLICE@ rv:52.0) @GK_SLICE@ Firefox/52.0");

+// Financial Times' polyfill.io breaks horribly on a Pale Moon UA. Send a strict Firefox UA instead.

+pref("@GUAO_PREF@.polyfill.io","Mozilla/5.0 (@OS_SLICE@ rv:60.9) @GK_SLICE@ Firefox/60.9");

+

 

 // The following requires native mode. Or it blocks.. "too old firefox", breakage, etc.

 pref("@GUAO_PREF@.deviantart.com","Mozilla/5.0 (@OS_SLICE@ rv:@GRE_VERSION@) @GRE_DATE_SLICE@ @PM_SLICE@");

 pref("@GUAO_PREF@.deviantart.net","Mozilla/5.0 (@OS_SLICE@ rv:@GRE_VERSION@) @GRE_DATE_SLICE@ @PM_SLICE@");

 pref("@GUAO_PREF@.altibox.dk","Mozilla/5.0 (@OS_SLICE@ rv:@GRE_VERSION@) @GRE_DATE_SLICE@ @PM_SLICE@");

 pref("@GUAO_PREF@.altibox.no","Mozilla/5.0 (@OS_SLICE@ rv:@GRE_VERSION@) @GRE_DATE_SLICE@ @PM_SLICE@");

+pref("@GUAO_PREF@.firefox.com","Mozilla/5.0 (@OS_SLICE@ rv:@GRE_VERSION@) @GRE_DATE_SLICE@ @PM_SLICE@");

 

 // UA-Sniffing domains below have indicated no interest in supporting Pale Moon (BOO!)

 pref("@GUAO_PREF@.humblebundle.com","Mozilla/5.0 (@OS_SLICE@ rv:@GK_VERSION@) @GK_SLICE@ @FX_SLICE@ (Pale Moon)");

diff --git a/application/palemoon/components/preferences/newtaburl.js b/application/palemoon/components/preferences/newtaburl.js
index ac0eec1c53..3c82df8460 100644
--- a/application/palemoon/components/preferences/newtaburl.js
+++ b/application/palemoon/components/preferences/newtaburl.js
@@ -22,7 +22,11 @@ var gNewtabUrl = {
           return;

         }

       } else {

-        newtabUrlChoice = Services.prefs.getIntPref("browser.newtab.choice");

+        if (this.newtabUrlChoiceIsSet) {

+          newtabUrlChoice = Services.prefs.getIntPref("browser.newtab.choice");

+        } else {

+          newtabUrlChoice = this.getNewtabChoice();

+        }

       }

       if (browserHomepageUrl || browserHomepageUrl == "") {

         if (Services.prefs.getBoolPref("browser.preferences.instantApply")) {

@@ -64,5 +68,35 @@ var gNewtabUrl = {
       } 

       Services.prefs.setCharPref("browser.newtab.url",newtabUrlPref);

     } catch(e) { console.error(e); }

+  },

+

+  /**

+   * Determines the value of browser.newtab.choice based

+   * on the value of browser.newtab.url

+   *

+   * @returns the value of browser.newtab.choice

+   */

+  getNewtabChoice: function() {

+    let newtabUrlPref = Services.prefs.getCharPref("browser.newtab.url");

+    let browserHomepageUrl = Services.prefs.getComplexValue("browser.startup.homepage",

+                              Components.interfaces.nsIPrefLocalizedString).data;

+    let newtabUrlSanitizedPref = browserHomepageUrl.split("|")[0];

+    let defaultStartupHomepage = Services.prefs.getDefaultBranch("browser.")

+                                  .getComplexValue("startup.homepage",

+                                    Components.interfaces.nsIPrefLocalizedString).data;

+    switch (newtabUrlPref) {

+      case "about:logopage": 

+        return 1;

+      case defaultStartupHomepage:

+        return 2;

+      case newtabUrlSanitizedPref:

+        return 3;

+      case "about:newtab":

+        return 4;

+      default: // Custom URL entered.

+        // We need this to consider instantApply.

+        this.newtabPageCustom = newtabUrlPref;

+        return 0;

+    }

   }

 };

diff --git a/application/palemoon/components/preferences/tabs.js b/application/palemoon/components/preferences/tabs.js
index 17084a7703..b09cb60dfb 100644
--- a/application/palemoon/components/preferences/tabs.js
+++ b/application/palemoon/components/preferences/tabs.js
@@ -78,34 +78,13 @@ var gTabsPane = {
   /**
    * Determines the value of the New Tab display drop-down based
    * on the value of browser.newtab.url.
-   *
-   * @returns the appropriate value of browser.newtab.choice
    */
   readNewtabUrl: function() {
-    let newtabUrlPref = document.getElementById("browser.newtab.url");
-    let newtabUrlSanitizedPref = document.getElementById("browser.newtab.myhome");
     let newtabUrlChoice = document.getElementById("browser.newtab.choice");
-    let defaultStartupHomepage = Services.prefs.getDefaultBranch("browser.")
-                                  .getComplexValue("startup.homepage",
-                                    Components.interfaces.nsIPrefLocalizedString).data;
-    switch (newtabUrlPref.value) {
-      case "about:logopage": 
-        newtabUrlChoice.value = 1;
-        break;
-      case defaultStartupHomepage:
-        newtabUrlChoice.value = 2;
-        break;
-      case newtabUrlSanitizedPref.value:
-        newtabUrlChoice.value = 3;
-        break;
-      case "about:newtab":
-        newtabUrlChoice.value = 4;
-        break;
-      default: // Custom URL entered.
-        document.getElementById("newtabPageCustom").hidden = false;
-        newtabUrlChoice.value = 0;
-        // We need this to consider instantApply.
-        this.newtabPageCustom = newtabUrlPref.value;
+    newtabUrlChoice.value = gNewtabUrl.getNewtabChoice();
+    if (newtabUrlChoice.value == 0) {
+      document.getElementById("newtabPageCustom").hidden = false;
     }
+    gNewtabUrl.newtabUrlChoiceIsSet = true;
   }
 };
diff --git a/application/palemoon/installer/windows/nsis/installer.nsi b/application/palemoon/installer/windows/nsis/installer.nsi
index 50bab5586a..9216bb6e1f 100644
--- a/application/palemoon/installer/windows/nsis/installer.nsi
+++ b/application/palemoon/installer/windows/nsis/installer.nsi
@@ -1080,7 +1080,6 @@ Function .onInit
 
   !insertmacro InitInstallOptionsFile "options.ini"
   !insertmacro InitInstallOptionsFile "shortcuts.ini"
-  !insertmacro InitInstallOptionsFile "components.ini"
   !insertmacro InitInstallOptionsFile "summary.ini"
 
   WriteINIStr "$PLUGINSDIR\options.ini" "Settings" NumFields "5"
@@ -1155,36 +1154,6 @@ Function .onInit
   WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" Bottom "50"
   WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" State  "1"
 
-  ; Don't offer to install the quick launch shortcut on Windows 7
-  ${Unless} ${AtLeastWin7}
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Type   "checkbox"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Text   "$(ICONS_QUICKLAUNCH)"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Left   "0"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Right  "-1"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Top    "60"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Bottom "70"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" State  "1"
-  ${EndUnless}
-
-  ; Setup the components.ini file for the Components Page
-  WriteINIStr "$PLUGINSDIR\components.ini" "Settings" NumFields "2"
-
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Type   "label"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Text   "$(OPTIONAL_COMPONENTS_DESC)"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Left   "0"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Right  "-1"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Top    "5"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Bottom "25"
-
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Type   "checkbox"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Text   "$(MAINTENANCE_SERVICE_CHECKBOX_DESC)"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Left   "0"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Right  "-1"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Top    "27"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Bottom "37"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" State  "1"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Flags  "GROUP"
-
   ; There must always be a core directory.
   ${GetSize} "$EXEDIR\core\" "/S=0K" $R5 $R7 $R8
   SectionSetSize ${APP_IDX} $R5
diff --git a/application/palemoon/themes/linux/browser.css b/application/palemoon/themes/linux/browser.css
index b545b06cb1..933067c2bc 100644
--- a/application/palemoon/themes/linux/browser.css
+++ b/application/palemoon/themes/linux/browser.css
@@ -1607,6 +1607,17 @@ richlistitem[type~="action"][actiontype="switchtab"] > .ac-url-box > .ac-action-
   background-image: linear-gradient(to top, rgba(0,0,0,.3) 1px, rgba(0,0,0,.05) 1px, transparent 50%);
 }
 
+/* When the tab bar is collapsed, show a 1px border in its place. */
+#TabsToolbar[collapsed="true"] {
+  visibility: visible;
+  height: 1px;
+  border-bottom-width: 1px;
+  /* !important here to override border-style: none on the toolbar */
+  border-bottom-style: solid !important;
+  border-bottom-color: ThreeDShadow;
+  overflow: hidden;
+}
+
 .tabbrowser-tab,
 .tabs-newtab-button {
   position: static;
diff --git a/application/palemoon/themes/osx/browser.css b/application/palemoon/themes/osx/browser.css
index ddf050785f..20e8c5eacb 100644
--- a/application/palemoon/themes/osx/browser.css
+++ b/application/palemoon/themes/osx/browser.css
@@ -1630,6 +1630,17 @@ richlistitem[type~="action"][actiontype="switchtab"][selected="true"] > .ac-url-
     background-image: linear-gradient(to top, @toolbarShadowColor@ 1px, rgba(0,0,0,.05) 1px, transparent 50%);
 }
 
+/* When the tab bar is collapsed, show a 1px border in its place. */
+#TabsToolbar[collapsed="true"] {
+  visibility: visible;
+  height: 1px;
+  border-bottom-width: 1px;
+  /* !important here to override border-style: none on the toolbar */
+  border-bottom-style: solid !important;
+  border-bottom-color: ThreeDShadow;
+  overflow: hidden;
+}
+
 @media (-moz-mac-lion-theme) {
     #main-window[sizemode=normal] #TabsToolbar {
         padding-left: 2px;
diff --git a/application/palemoon/themes/windows/browser.css b/application/palemoon/themes/windows/browser.css
index 56a8318da2..aae36c5399 100644
--- a/application/palemoon/themes/windows/browser.css
+++ b/application/palemoon/themes/windows/browser.css
@@ -31,6 +31,8 @@
 %endif
 
 :root {
+  --toolbox-after-color: ThreeDShadow;
+
   --toolbar-custom-color: hsl(210,75%,92%);
   --toolbar-highlight-top: rgba(255,255,255,.5);
   --toolbar-highlight-bottom: transparent;
@@ -91,7 +93,7 @@
   display: -moz-box;
   -moz-box-ordinal-group: 101; /* tabs toolbar is 100 */
   height: 1px;
-  background-color: ThreeDShadow;
+  background-color: var(--toolbox-after-color);
 }
 #navigator-toolbox[tabsontop=false]::after,
 #main-window[disablechrome] #navigator-toolbox::after {
@@ -1841,6 +1843,17 @@ richlistitem[type~="action"][actiontype="switchtab"] > .ac-url-box > .ac-action-
   background-image: linear-gradient(to top, @toolbarShadowColor@ 1px, rgba(0,0,0,.05) 1px, transparent 50%);
 }
 
+/* When the tab bar is collapsed, show a 1px border in its place. */
+#TabsToolbar[collapsed="true"] {
+  visibility: visible;
+  height: 1px;
+  border-bottom-width: 1px;
+  /* !important here to override border-style: none on the toolbar */
+  border-bottom-style: solid !important;
+  border-bottom-color: var(--toolbox-after-color);
+  overflow: hidden;
+}
+
 .tabbrowser-tab,
 .tabs-newtab-button {
   -moz-appearance: none;
@@ -3044,8 +3057,8 @@ toolbar[brighttext] #addonbar-closebutton {
   
   @media (-moz-os-version: windows-vista),
          (-moz-os-version: windows-win7) {
-    #navigator-toolbox:not(:-moz-lwtheme)::after {
-      background-color: #aabccf;
+    :root:not(:-moz-lwtheme) {
+      --toolbox-after-color: #aabccf;
     }
   }
 
@@ -3054,9 +3067,9 @@ toolbar[brighttext] #addonbar-closebutton {
     :root {
       --toolbar-custom-color: hsl(210,0%,92%);
     }
-
-    #navigator-toolbox:not(:-moz-lwtheme)::after {
-      background-color: #bcbcbc;
+    
+    :root:not(:-moz-lwtheme) {
+      --toolbox-after-color: #bcbcbc;
     }
   }