diff --git a/browser/app/Makefile.in b/browser/app/Makefile.in
--- a/browser/app/Makefile.in
+++ b/browser/app/Makefile.in
@@ -44,16 +44,17 @@ srcdir		= @srcdir@
 VPATH		= @srcdir@
 
 include $(DEPTH)/config/autoconf.mk
 
 DIRS		= profile/extensions
 
 PREF_JS_EXPORTS = $(srcdir)/profile/firefox.js \
 		  $(srcdir)/profile/channel-prefs.js \
+		  $(srcdir)/profile/kde.js \
 		  $(NULL)
 
 
 # hardcode en-US for the moment
 AB_CD = en-US
 
 DEFINES += -DAB_CD=$(AB_CD)
 
diff --git a/browser/base/content/browser-kde.xul b/browser/base/content/browser-kde.xul
new file mode 100644
--- /dev/null
+++ b/browser/base/content/browser-kde.xul
@@ -0,0 +1,1337 @@
+#filter substitution
+<?xml version="1.0"?>
+# -*- Mode: HTML -*-
+#
+# ***** BEGIN LICENSE BLOCK *****
+# Version: MPL 1.1/GPL 2.0/LGPL 2.1
+#
+# The contents of this file are subject to the Mozilla Public License Version
+# 1.1 (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+# http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+# for the specific language governing rights and limitations under the
+# License.
+#
+# The Original Code is Mozilla Communicator client code, released
+# March 31, 1998.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998-2000
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Blake Ross <blake@cs.stanford.edu>
+#   David Hyatt <hyatt@mozilla.org>
+#   Joe Hewitt <hewitt@netscape.com>
+#   Pierre Chanial <chanial@noos.fr>
+#   Dean Tessman <dean_tessman@hotmail.com>
+#   Johnathan Nightingale <johnath@mozilla.com>
+#   Dão Gottwald <dao@mozilla.com>
+#   Ehsan Akhgari <ehsan.akhgari@gmail.com>
+#   Robert Strong <robert.bugzilla@gmail.com>
+#   Rob Campbell <rcampbell@mozilla.com>
+#   Patrick Walton <pcwalton@mozilla.com>
+#   David Dahl <ddahl@mozilla.com>
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either the GNU General Public License Version 2 or later (the "GPL"), or
+# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+# in which case the provisions of the GPL or the LGPL are applicable instead
+# of those above. If you wish to allow use of your version of this file only
+# under the terms of either the GPL or the LGPL, and not to allow others to
+# use your version of this file under the terms of the MPL, indicate your
+# decision by deleting the provisions above and replace them with the notice
+# and other provisions required by the GPL or the LGPL. If you do not delete
+# the provisions above, a recipient may use your version of this file under
+# the terms of any one of the MPL, the GPL or the LGPL.
+#
+# ***** END LICENSE BLOCK *****
+
+<?xml-stylesheet href="chrome://browser/content/browser.css" type="text/css"?>
+<?xml-stylesheet href="chrome://browser/content/places/places.css" type="text/css"?>
+<?xml-stylesheet href="chrome://browser/skin/" type="text/css"?>
+
+<?xul-overlay href="chrome://global/content/editMenuOverlay.xul"?>
+<?xul-overlay href="chrome://browser/content/baseMenuOverlay.xul"?>
+<?xul-overlay href="chrome://browser/content/places/placesOverlay.xul"?>
+
+# All DTD information is stored in a separate file so that it can be shared by
+# hiddenWindow.xul.
+#include browser-doctype.inc
+
+<window id="main-window"
+        xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+        xmlns:svg="http://www.w3.org/2000/svg"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onload="BrowserStartup()" onunload="BrowserShutdown()" onclose="return WindowIsClosing();"
+        title="&mainWindow.title;@PRE_RELEASE_SUFFIX@"
+        title_normal="&mainWindow.title;@PRE_RELEASE_SUFFIX@"
+#ifdef XP_MACOSX
+        title_privatebrowsing="&mainWindow.title;@PRE_RELEASE_SUFFIX@&mainWindow.titlemodifiermenuseparator;&mainWindow.titlePrivateBrowsingSuffix;"
+        titledefault="&mainWindow.title;@PRE_RELEASE_SUFFIX@"
+        titlemodifier=""
+        titlemodifier_normal=""
+        titlemodifier_privatebrowsing="&mainWindow.titlePrivateBrowsingSuffix;"
+#else
+        title_privatebrowsing="&mainWindow.titlemodifier;@PRE_RELEASE_SUFFIX@ &mainWindow.titlePrivateBrowsingSuffix;"
+        titlemodifier="&mainWindow.titlemodifier;@PRE_RELEASE_SUFFIX@"
+        titlemodifier_normal="&mainWindow.titlemodifier;@PRE_RELEASE_SUFFIX@"
+        titlemodifier_privatebrowsing="&mainWindow.titlemodifier;@PRE_RELEASE_SUFFIX@ &mainWindow.titlePrivateBrowsingSuffix;"
+#endif
+        titlemenuseparator="&mainWindow.titlemodifiermenuseparator;"
+        lightweightthemes="true"
+        lightweightthemesfooter="browser-bottombox"
+        windowtype="navigator:browser"
+        screenX="4" screenY="4"
+        browsingmode="normal"
+        persist="screenX screenY width height sizemode"> 
+
+# All JS files which are not content (only) dependent that browser.xul
+# wishes to include *must* go into the global-scripts.inc file
+# so that they can be shared by macBrowserOverlay.xul.
+#include global-scripts.inc
+<script type="application/javascript" src="chrome://browser/content/nsContextMenu.js"/>
+
+#ifdef MOZ_SAFE_BROWSING
+<script type="application/javascript" src="chrome://browser/content/safebrowsing/sb-loader.js"/>
+#endif
+<script type="application/javascript" src="chrome://global/content/contentAreaUtils.js"/>
+
+<script type="application/javascript" src="chrome://browser/content/places/editBookmarkOverlay.js"/>
+
+# All sets except for popupsets (commands, keys, stringbundles and broadcasters) *must* go into the
+# browser-sets.inc file for sharing with hiddenWindow.xul.
+#include browser-sets.inc
+
+  <popupset id="mainPopupSet">
+    <menupopup id="tabContextMenu"
+               onpopupshowing="if (event.target == this) TabContextMenu.updateContextMenu(this);"
+               onpopuphidden="if (event.target == this) TabContextMenu.contextTab = null;">
+      <menuitem id="context_reloadTab" label="&reloadTab.label;" accesskey="&reloadTab.accesskey;"
+                oncommand="gBrowser.reloadTab(TabContextMenu.contextTab);"/>
+      <menuitem id="context_reloadAllTabs" label="&reloadAllTabs.label;" accesskey="&reloadAllTabs.accesskey;"
+                tbattr="tabbrowser-multiple"
+                oncommand="gBrowser.reloadAllTabs();"/>
+      <menuseparator/>
+      <menuitem id="context_pinTab" label="&pinAppTab.label;"
+                accesskey="&pinAppTab.accesskey;"
+                oncommand="gBrowser.pinTab(TabContextMenu.contextTab);"/>
+      <menuitem id="context_unpinTab" label="&unpinAppTab.label;" hidden="true"
+                accesskey="&unpinAppTab.accesskey;"
+                oncommand="gBrowser.unpinTab(TabContextMenu.contextTab);"/>
+      <menu id="context_tabViewMenu" label="&moveToGroup.label;"
+            accesskey="&moveToGroup.accesskey;">
+        <menupopup id="context_tabViewMenuPopup"
+                   onpopupshowing="if (event.target == this) TabView.updateContextMenu(TabContextMenu.contextTab, this);">
+          <menuseparator id="context_tabViewNamedGroups" hidden="true"/>
+          <menuitem label="&moveToNewGroup.label;"
+                    oncommand="TabView.moveTabTo(TabContextMenu.contextTab, null);"/>
+        </menupopup>
+      </menu>
+      <menuitem id="context_openTabInWindow" label="&moveToNewWindow.label;"
+                accesskey="&moveToNewWindow.accesskey;"
+                tbattr="tabbrowser-multiple"
+                oncommand="gBrowser.replaceTabWithWindow(TabContextMenu.contextTab);"/>
+      <menuseparator/>
+      <menuitem id="context_bookmarkAllTabs"
+                label="&bookmarkAllTabs.label;"
+                accesskey="&bookmarkAllTabs.accesskey;"
+                command="Browser:BookmarkAllTabs"/>
+      <menuseparator/>
+      <menuitem id="context_closeOtherTabs" label="&closeOtherTabs.label;" accesskey="&closeOtherTabs.accesskey;"
+                oncommand="gBrowser.removeAllTabsBut(TabContextMenu.contextTab);"/>
+      <menuitem id="context_undoCloseTab"
+                label="&undoCloseTab.label;"
+                accesskey="&undoCloseTab.accesskey;"
+                observes="History:UndoCloseTab"/>
+      <menuitem id="context_closeTab" label="&closeTab.label;" accesskey="&closeTab.accesskey;"
+                oncommand="gBrowser.removeTab(TabContextMenu.contextTab, { animate: true });"/>
+    </menupopup>
+
+    <menupopup id="backForwardMenu"
+               onpopupshowing="return FillHistoryMenu(event.target);"
+               oncommand="gotoHistoryIndex(event);"
+               onclick="checkForMiddleClick(this, event);"/>
+    <tooltip id="aHTMLTooltip" onpopupshowing="return FillInHTMLTooltip(document.tooltipNode);"/>
+
+    <!-- for search and content formfill/pw manager -->
+    <panel type="autocomplete" id="PopupAutoComplete" noautofocus="true" hidden="true"/>
+
+    <!-- for url bar autocomplete -->
+    <panel type="autocomplete-richlistbox" id="PopupAutoCompleteRichResult" noautofocus="true" hidden="true"/>
+
+    <!-- for invalid form error message -->
+    <panel id="invalid-form-popup" noautofocus="true" hidden="true" level="parent"/>
+
+    <panel id="editBookmarkPanel"
+           orient="vertical"
+           ignorekeys="true"
+           hidden="true"
+           onpopupshown="StarUI.panelShown(event);"
+           aria-labelledby="editBookmarkPanelTitle">
+      <row id="editBookmarkPanelHeader" align="center" hidden="true">
+        <vbox align="center">
+          <image id="editBookmarkPanelStarIcon"/>
+        </vbox>
+        <vbox>
+          <label id="editBookmarkPanelTitle"/>
+          <description id="editBookmarkPanelDescription"/>
+          <hbox>
+            <button id="editBookmarkPanelUndoRemoveButton"
+                    class="editBookmarkPanelHeaderButton"
+                    hidden="true"
+                    oncommand="StarUI.undoRemoveBookmarkCommand();"
+                    label="&editBookmark.undo.label;"
+                    accesskey="&editBookmark.undo.accessKey;"/>
+            <button id="editBookmarkPanelRemoveButton"
+                    class="editBookmarkPanelHeaderButton"
+                    oncommand="StarUI.removeBookmarkButtonCommand();"
+                    accesskey="&editBookmark.removeBookmark.accessKey;"/>
+            <button id="editBookmarkPanelEditButton"
+                    class="editBookmarkPanelHeaderButton"
+                    oncommand="StarUI.editButtonCommand();"
+                    label="&editBookmark.edit.label;"
+                    accesskey="&editBookmark.edit.accessKey;"/>
+          </hbox>
+        </vbox>
+      </row>
+      <vbox id="editBookmarkPanelContent" flex="1" hidden="true"/>
+      <hbox id="editBookmarkPanelBottomButtons" pack="end">
+#ifdef XP_UNIX // XP_UNIX != KDE
+        <button id="editBookmarkPanelDoneButton"
+                class="editBookmarkPanelBottomButton"
+                label="&editBookmark.done.label;"
+                default="true"
+                oncommand="StarUI.panel.hidePopup();"/>
+        <button id="editBookmarkPanelDeleteButton"
+                class="editBookmarkPanelBottomButton"
+                label="&editBookmark.cancel.label;"
+                oncommand="StarUI.cancelButtonOnCommand();"/>
+#else
+        <button id="editBookmarkPanelDeleteButton"
+                class="editBookmarkPanelBottomButton"
+                label="&editBookmark.cancel.label;"
+                oncommand="StarUI.cancelButtonOnCommand();"/>
+        <button id="editBookmarkPanelDoneButton"
+                class="editBookmarkPanelBottomButton"
+                label="&editBookmark.done.label;"
+                default="true"
+                oncommand="StarUI.panel.hidePopup();"/>
+#endif
+      </hbox>
+    </panel>
+
+    <panel id="highlighter-panel"
+           hidden="true"
+           ignorekeys="true"
+           noautofocus="true"
+           noautohide="true"
+           onclick="InspectorUI.stopInspecting();"
+           onmousemove="InspectorUI.highlighter.handleMouseMove(event);"
+           onMozMousePixelScroll="InspectorUI.highlighter.handlePixelScroll(event);"/>
+
+    <panel id="inspector-tree-panel"
+           orient="vertical"
+           hidden="true"
+           ignorekeys="true"
+           noautofocus="true"
+           noautohide="true"
+           titlebar="normal"
+           close="true"
+           onpopuphiding="InspectorUI.closeInspectorUI(true);"
+           label="&inspectPanelTitle.label;">
+      <toolbar id="inspector-toolbar"
+               nowindowdrag="true">
+        <toolbarbutton id="inspector-inspect-toolbutton"
+                       label="&inspectButton.label;"
+                       accesskey="&inspectButton.accesskey;"
+                       class="toolbarbutton-text"
+                       command="Inspector:Inspect"/>
+        <toolbarbutton id="inspector-previous-toolbutton"
+                       label="&inspectPreviousButton.label;"
+                       accesskey="&inspectPreviousButton.accesskey;"
+                       class="toolbarbutton-text"
+                       command="Inspector:Previous"/>
+        <toolbarbutton id="inspector-next-toolbutton"
+                       label="&inspectNextButton.label;"
+                       accesskey="&inspectNextButton.accesskey;"
+                       class="toolbarbutton-text"
+                       command="Inspector:Next"/>
+        <toolbarbutton id="inspector-style-toolbutton"
+                       label="&inspectStyleButton.label;"
+                       accesskey="&inspectStyleButton.accesskey;"
+                       class="toolbarbutton-text"
+                       oncommand="InspectorUI.toggleStylePanel();"/>
+        <toolbarbutton id="inspector-dom-toolbutton"
+                       label="&inspectObjectButton.label;"
+                       accesskey="&inspectObjectButton.accesskey;"
+                       class="toolbarbutton-text"
+                       oncommand="InspectorUI.toggleDOMPanel();"/>
+      </toolbar>
+      <hbox id="tree-panel-resizer-box" align="end">
+        <spacer flex="1" />
+        <resizer dir="bottomend" />
+      </hbox>
+    </panel>
+
+    <panel id="inspector-style-panel"
+           hidden="true"
+           orient="vertical"
+           ignorekeys="true"
+           noautofocus="true"
+           noautohide="true"
+           titlebar="normal"
+           label="&inspectStylePanelTitle.label;">
+        <listbox id="inspector-style-listbox" flex="1"/>
+        <hbox align="end">
+          <spacer flex="1" />
+          <resizer dir="bottomend"/>
+        </hbox>
+    </panel>
+
+    <menupopup id="toolbar-context-menu"
+               onpopupshowing="onViewToolbarsPopupShowing(event);">
+      <menuseparator/>
+      <menuitem command="cmd_ToggleTabsOnTop"
+                type="checkbox"
+                label="&viewTabsOnTop.label;"
+                accesskey="&viewTabsOnTop.accesskey;"/>
+      <menuseparator/>
+      <menuitem command="cmd_CustomizeToolbars"
+                label="&viewCustomizeToolbar.label;"
+                accesskey="&viewCustomizeToolbar.accesskey;"/>
+    </menupopup>
+
+    <menupopup id="blockedPopupOptions" 
+               onpopupshowing="gPopupBlockerObserver.fillPopupList(event);">
+      <menuitem observes="blockedPopupAllowSite"/>
+      <menuitem observes="blockedPopupEditSettings"/>
+      <menuitem observes="blockedPopupDontShowMessage"/>
+      <menuseparator observes="blockedPopupsSeparator"/>
+    </menupopup>
+
+    <menupopup id="autohide-context"
+           onpopupshowing="FullScreen.getAutohide(this.firstChild);">
+      <menuitem type="checkbox" label="&fullScreenAutohide.label;"
+                accesskey="&fullScreenAutohide.accesskey;"
+                oncommand="FullScreen.setAutohide();"/>
+      <menuseparator/>
+      <menuitem label="&fullScreenExit.label;"
+                accesskey="&fullScreenExit.accesskey;"
+                oncommand="BrowserFullScreen();"/>
+    </menupopup>
+
+    <menupopup id="contentAreaContextMenu"
+               onpopupshowing="if (event.target != this)
+                                 return true;
+                               gContextMenu = new nsContextMenu(this, gBrowser);
+                               if (gContextMenu.shouldDisplay)
+                                 updateEditUIVisibility();
+                               return gContextMenu.shouldDisplay;"
+               onpopuphiding="if (event.target == this) { gContextMenu = null; updateEditUIVisibility(); }">
+#include browser-context.inc
+    </menupopup>
+
+    <menupopup id="placesContext"/>
+
+    <panel id="notification-popup" position="after_start" noautofocus="true" hidden="true"/>
+
+    <!-- Popup for site identity information -->
+    <panel id="identity-popup" position="after_start" hidden="true" noautofocus="true"
+           onpopupshown="document.getElementById('identity-popup-more-info-button').focus();"
+           level="top">
+      <hbox id="identity-popup-container" align="top">
+        <image id="identity-popup-icon"/>
+        <vbox id="identity-popup-content-box">
+          <label id="identity-popup-connectedToLabel"
+                 class="identity-popup-label"
+                 value="&identity.connectedTo;"/>
+          <label id="identity-popup-connectedToLabel2"
+                 class="identity-popup-label"
+                 value="&identity.unverifiedsite2;"/>
+          <description id="identity-popup-content-host"
+                       class="identity-popup-description"/>
+          <label id="identity-popup-runByLabel"
+                 class="identity-popup-label"
+                 value="&identity.runBy;"/>
+          <description id="identity-popup-content-owner"
+                       class="identity-popup-description"/>
+          <description id="identity-popup-content-supplemental"
+                       class="identity-popup-description"/>
+          <description id="identity-popup-content-verifier"
+                       class="identity-popup-description"/>
+          <hbox id="identity-popup-encryption" flex="1">
+            <vbox>
+              <image id="identity-popup-encryption-icon"/>
+            </vbox>
+            <description id="identity-popup-encryption-label" flex="1"
+                         class="identity-popup-description"/>
+          </hbox>
+          <!-- Footer button to open security page info -->
+          <hbox pack="end">
+            <button id="identity-popup-more-info-button"
+                    label="&identity.moreInfoLinkText;"
+                    onblur="gIdentityHandler.hideIdentityPopup();"
+                    oncommand="gIdentityHandler.handleMoreInfoClick(event);"/>
+          </hbox>
+        </vbox>
+      </hbox>
+    </panel>
+
+    <tooltip id="urlTooltip">
+      <label crop="center" flex="1" class="tooltip-label"/>
+    </tooltip>
+
+    <panel id="ctrlTab-panel" class="KUI-panel" hidden="true" norestorefocus="true" level="top">
+      <hbox>
+        <button class="ctrlTab-preview" flex="1"/>
+        <button class="ctrlTab-preview" flex="1"/>
+        <button class="ctrlTab-preview" flex="1"/>
+        <button class="ctrlTab-preview" flex="1"/>
+        <button class="ctrlTab-preview" flex="1"/>
+        <button class="ctrlTab-preview" flex="1"/>
+      </hbox>
+      <hbox pack="center">
+        <button id="ctrlTab-showAll" class="ctrlTab-preview" noicon="true"/>
+      </hbox>
+    </panel>
+
+    <panel id="allTabs-panel" hidden="true" norestorefocus="true" ignorekeys="true"
+           onmouseover="allTabs._updateTabCloseButton(event);">
+      <hbox id="allTabs-meta" align="center">
+        <spacer flex="1"/>
+        <textbox id="allTabs-filter"
+                 tooltiptext="&allTabs.filter.emptyText;"
+                 type="search"
+                 oncommand="allTabs.filter();"/>
+        <spacer flex="1"/>
+        <toolbarbutton class="KUI-panel-closebutton"
+                       oncommand="allTabs.close()"
+                       tooltiptext="&closeCmd.label;"/>
+      </hbox>
+      <stack id="allTabs-stack">
+        <vbox id="allTabs-container"><hbox/></vbox>
+        <toolbarbutton id="allTabs-tab-close-button"
+                       class="tabs-closebutton"
+                       oncommand="allTabs.closeTab(event);"
+                       tooltiptext="&closeCmd.label;"
+                       style="visibility:hidden"/>
+      </stack>
+    </panel>
+
+    <!-- Bookmarks and history tooltip -->
+    <tooltip id="bhTooltip"/>
+
+    <panel id="customizeToolbarSheetPopup"
+           noautohide="true">
+      <iframe id="customizeToolbarSheetIFrame"
+              style="&dialog.style;"
+              hidden="true"/>
+    </panel>
+
+    <tooltip id="tabbrowser-tab-tooltip" onpopupshowing="gBrowser.createTooltip(event);"/>
+  </popupset>
+
+#ifdef MENUBAR_CAN_AUTOHIDE
+  <vbox id="titlebar">
+  <hbox id="titlebar-content">
+  <hbox id="appmenu-button-container" align="start">
+  <button id="appmenu-button"
+          type="menu"
+#ifdef XP_WIN
+          label="&brandShortName;"
+#else
+          label="&appMenuButton.label;"
+#endif
+          style="-moz-user-focus: ignore;">
+    <menupopup id="appmenu-popup"
+#ifdef MOZ_SERVICES_SYNC
+               onpopupshowing="updateEditUIVisibility();gSyncUI.updateUI();">
+#else
+               onpopupshowing="updateEditUIVisibility();">
+#endif
+      <hbox>
+        <vbox id="appmenuPrimaryPane">
+          <hbox flex="1"
+                class="split-menuitem">
+            <menuitem id="appmenu_newTab"
+                      class="menuitem-tooltip split-menuitem-item"
+                      flex="1"
+                      label="&tabCmd.label;"
+                      command="cmd_newNavigatorTab"
+                      key="key_newNavigatorTab"/>
+              <menu class="split-menuitem-menu">
+                <menupopup>
+                  <menuitem id="appmenu_newTab_popup"
+                            label="&tabCmd.label;"
+                            command="cmd_newNavigatorTab"
+                            key="key_newNavigatorTab"/>
+                  <menuitem id="appmenu_newNavigator"
+                            label="&newNavigatorCmd.label;"
+                            command="cmd_newNavigator"
+                            key="key_newNavigator"/>
+                  <menuseparator/>
+                  <menuitem id="appmenu_openFile"
+                            label="&openFileCmd.label;"
+                            command="Browser:OpenFile"
+                            key="openFileKb"/>
+                </menupopup>
+               </menu>
+          </hbox>
+          <menuitem id="appmenu_privateBrowsing"
+                    class="menuitem-iconic menuitem-iconic-tooltip"
+                    label="&privateBrowsingCmd.start.label;"
+                    startlabel="&privateBrowsingCmd.start.label;"
+                    stoplabel="&privateBrowsingCmd.stop.label;"
+                    command="Tools:PrivateBrowsing"
+                    key="key_privatebrowsing"/>
+          <menuitem label="&goOfflineCmd.label;"
+                    id="appmenu_offlineModeRecovery"
+                    type="checkbox"
+                    observes="workOfflineMenuitemState"
+                    oncommand="BrowserOffline.toggleOfflineStatus();"/>
+          <menuseparator class="appmenu-menuseparator"/>
+          <hbox>
+            <menuitem id="appmenu-edit-label"
+                      label="&appMenuEdit.label;"
+                      disabled="true"/>
+            <toolbarbutton id="appmenu-cut"
+                           class="appmenu-edit-button"
+                           command="cmd_cut"
+                           onclick="if (!this.disabled) hidePopup();"
+                           tooltiptext="&cutButton.tooltip;"/>
+            <toolbarbutton id="appmenu-copy"
+                           class="appmenu-edit-button"
+                           command="cmd_copy"
+                           onclick="if (!this.disabled) hidePopup();"
+                           tooltiptext="&copyButton.tooltip;"/>
+            <toolbarbutton id="appmenu-paste"
+                           class="appmenu-edit-button"
+                           command="cmd_paste"
+                           onclick="if (!this.disabled) hidePopup();"
+                           tooltiptext="&pasteButton.tooltip;"/>
+          </hbox>
+          <menuitem id="appmenu_find"
+                    class="menuitem-tooltip"
+                    label="&appMenuFind.label;"
+                    command="cmd_find"
+                    key="key_find"/>
+          <menuseparator class="appmenu-menuseparator"/>
+          <menuitem id="appmenu_savePage"
+                    class="menuitem-tooltip"
+                    label="&savePageCmd.label;"
+                    command="Browser:SavePage"
+                    key="key_savePage"/>
+          <menuitem id="appmenu_sendLink"
+                    label="&sendPageCmd.label;"
+                    command="Browser:SendLink"/>
+          <hbox flex="1"
+                class="split-menuitem">
+            <menuitem id="appmenu_print"
+                      class="menuitem-iconic menuitem-iconic-tooltip split-menuitem-item"
+                      flex="1"
+                      label="&printCmd.label;"
+                      command="cmd_print"
+                      key="printKb"/>
+            <menu class="split-menuitem-menu">
+              <menupopup>
+                <menuitem id="appmenu_print_popup"
+                          class="menuitem-iconic"
+                          label="&printCmd.label;"
+                          command="cmd_print"
+                          key="printKb"/>
+                <menuitem id="appmenu_printPreview"
+                          label="&printPreviewCmd.label;"
+                          command="cmd_printPreview"/>
+                <menuitem id="appmenu_printSetup"
+                          label="&printSetupCmd.label;"
+                          command="cmd_pageSetup"/>
+              </menupopup>
+            </menu>
+          </hbox>
+          <menuseparator class="appmenu-menuseparator"/>
+          <menu id="appmenu_webDeveloper"
+                label="&appMenuWebDeveloper.label;">
+            <menupopup id="appmenu_webDeveloper_popup">
+              <menuitem id="appmenu_webConsole"
+                        label="&webConsoleCmd.label;"
+                        type="checkbox"
+                        oncommand="HUDConsoleUI.toggleHUD();"
+                        key="key_webConsole"/>
+              <menuitem id="appmenu_pageInspect"
+                        hidden="true"
+                        label="&inspectMenu.label;"
+                        type="checkbox"
+                        command="Tools:Inspect"
+                        key="key_inspect"/>
+              <menuseparator/>
+              <menuitem id="appmenu_pageSource"
+                        label="&viewPageSourceCmd.label;"
+                        command="View:PageSource"
+                        key="key_viewSource"/>
+              <menuseparator/>
+#define ID_PREFIX appmenu_developer_
+#include browser-charsetmenu.inc
+#undef ID_PREFIX
+              <menuseparator/>
+              <menuitem label="&goOfflineCmd.label;"
+                        type="checkbox"
+                        observes="workOfflineMenuitemState"
+                        oncommand="BrowserOffline.toggleOfflineStatus();"/>
+            </menupopup>
+          </menu>
+          <menuseparator class="appmenu-menuseparator"/>
+#define ID_PREFIX appmenu_
+#include browser-charsetmenu.inc
+#undef ID_PREFIX
+          <menuitem id="appmenu_fullScreen"
+                    class="menuitem-tooltip"
+                    label="&fullScreenCmd.label;"
+                    type="checkbox"
+                    observes="View:FullScreen"
+                    key="key_fullScreen"/>
+          <menuitem id="appmenu-quit"
+                    class="menuitem-iconic"
+#ifdef XP_WIN
+                    label="&quitApplicationCmdWin.label;"
+#else
+                    label="&quitApplicationCmd.label;"
+#endif
+                    command="cmd_quitApplication"/>
+        </vbox>
+        <vbox id="appmenuSecondaryPane">
+          <hbox class="split-menuitem">
+            <menuitem id="appmenu_bookmarks"
+                      class="menuitem-iconic menuitem-iconic-tooltip split-menuitem-item"
+                      flex="1"
+                      label="&bookmarksMenu.label;"
+                      command="Browser:ShowAllBookmarks"
+                      key="manBookmarkKb"/>
+            <menu id="appmenu_bookmarksMenu"
+                  class="split-menuitem-menu">
+              <menupopup id="appmenu_bookmarksPopup"
+                         placespopup="true"
+                         context="placesContext"
+                         openInTabs="children"
+                         oncommand="BookmarksEventHandler.onCommand(event);"
+                         onclick="BookmarksEventHandler.onClick(event);"
+                         onpopupshowing="BookmarksMenuButton.onPopupShowing(event);
+                                         if (!this.parentNode._placesView)
+                                           new PlacesMenu(event, 'place:folder=BOOKMARKS_MENU');"
+                         tooltip="bhTooltip"
+                         popupsinherittooltip="true">
+                <menuitem id="appmenu_showAllBookmarks"
+                          label="&showAllBookmarks.label;"
+                          command="Browser:ShowAllBookmarks"
+                          context=""
+                          key="manBookmarkKb"/>
+                <menuseparator/>
+                <menuitem id="appmenu_bookmarkThisPage"
+                          class="menuitem-iconic"
+                          label="&bookmarkThisPageCmd.label;"
+                          command="Browser:AddBookmarkAs"
+                          key="addBookmarkAsKb"/>
+                <menuitem id="appmenu_subscribeToPage"
+                          class="menuitem-iconic"
+                          label="&subscribeToPageMenuitem.label;"
+                          oncommand="return FeedHandler.subscribeToFeed(null, event);"
+                          onclick="checkForMiddleClick(this, event);"
+                          observes="singleFeedMenuitemState"/>
+                <menu id="appmenu_subscribeToPageMenu"
+                      class="menu-iconic"
+                      label="&subscribeToPageMenupopup.label;"
+                      observes="multipleFeedsMenuState">
+                  <menupopup id="appmenu_subscribeToPageMenupopup"
+                             onpopupshowing="return FeedHandler.buildFeedList(event.target);"
+                             oncommand="return FeedHandler.subscribeToFeed(null, event);"
+                             onclick="checkForMiddleClick(this, event);"/>
+                </menu>
+                <menuseparator/>
+                <menu id="appmenu_bookmarksToolbar"
+                      placesanonid="toolbar-autohide"
+                      class="menu-iconic bookmark-item"
+                      label="&personalbarCmd.label;"
+                      container="true">
+                  <menupopup id="appmenu_bookmarksToolbarPopup"
+                             placespopup="true"
+                             context="placesContext"
+                             onpopupshowing="if (!this.parentNode._placesView)
+                                               new PlacesMenu(event, 'place:folder=TOOLBAR');"/>
+                </menu>
+                <menuseparator/>
+                <!-- Bookmarks menu items -->
+                <menuseparator builder="end"
+                               class="hide-if-empty-places-result"/>
+                <menuitem id="appmenu_unsortedBookmarks"
+                          label="&appMenuUnsorted.label;"
+                          oncommand="PlacesCommandHook.showPlacesOrganizer('UnfiledBookmarks');"
+                          class="menuitem-iconic"/>
+              </menupopup>
+            </menu>
+          </hbox>
+          <hbox class="split-menuitem">
+            <menuitem id="appmenu_history"
+                      class="menuitem-iconic menuitem-iconic-tooltip split-menuitem-item"
+                      flex="1"
+                      label="&historyMenu.label;"
+                      command="Browser:ShowAllHistory"
+                      key="showAllHistoryKb"/>
+            <menu id="appmenu_historyMenu"
+                  class="split-menuitem-menu">
+              <menupopup id="appmenu_historyMenupopup"
+                         placespopup="true"
+                         oncommand="this.parentNode._placesView._onCommand(event);"
+                         onclick="checkForMiddleClick(this, event);"
+                         onpopupshowing="if (!this.parentNode._placesView)
+                                           new HistoryMenu(event);"
+                         tooltip="bhTooltip"
+                         popupsinherittooltip="true">
+                <menuitem id="appmenu_showAllHistory"
+                          label="&showAllHistoryCmd2.label;"
+                          command="Browser:ShowAllHistory"
+                          key="showAllHistoryKb"/>
+                <menuseparator/>
+                <menuitem id="appmenu_sanitizeHistory"
+                          label="&clearRecentHistory.label;"
+                          key="key_sanitize"
+                          command="Tools:Sanitize"/>
+                <menuseparator class="hide-if-empty-places-result"/>
+                <menuitem id="appmenu_restoreLastSession"
+                          class="restoreLastSession"
+                          label="&historyRestoreLastSession.label;"
+                          oncommand="restoreLastSession();"
+                          disabled="true"/>
+                <menu id="appmenu_recentlyClosedTabsMenu"
+                      class="recentlyClosedTabsMenu"
+                      label="&historyUndoMenu.label;"
+                      disabled="true">
+                  <menupopup id="appmenu_recentlyClosedTabsMenupopup"
+                             onpopupshowing="document.getElementById('appmenu_historyMenu')._placesView.populateUndoSubmenu();"/>
+                </menu>
+                <menu id="appmenu_recentlyClosedWindowsMenu"
+                      class="recentlyClosedWindowsMenu"
+                      label="&historyUndoWindowMenu.label;"
+                      disabled="true">
+                  <menupopup id="appmenu_recentlyClosedWindowsMenupopup"
+                             onpopupshowing="document.getElementById('appmenu_historyMenu')._placesView.populateUndoWindowSubmenu();"/>
+                </menu>
+                <menuseparator/>
+              </menupopup>
+            </menu>
+          </hbox>
+            <menuitem id="appmenu_downloads"
+                      class="menuitem-tooltip"
+                      label="&downloads.label;"
+                      command="Tools:Downloads"
+                      key="key_openDownloads"/>
+            <spacer id="appmenuSecondaryPane-spacer"/>
+            <menuitem id="appmenu_addons"
+                      class="menuitem-iconic menuitem-iconic-tooltip"
+                      label="&addons.label;"
+                      command="Tools:Addons"
+                      key="key_openAddons"/>
+            <hbox class="split-menuitem">
+              <menuitem id="appmenu_customize"
+                        label="&preferencesCmd.label;"
+                        class="split-menuitem-item"
+                        flex="1"
+                        oncommand="openPreferences();"/>
+              <menu class="split-menuitem-menu"
+                    label="&preferencesCmd.label;">
+                <menupopup id="appmenu_customizeMenu"
+                           onpopupshowing="onViewToolbarsPopupShowing(event, document.getElementById('appmenu_toggleTabsOnTop').previousSibling);">
+                  <menuitem id="appmenu_preferences"
+#ifdef XP_UNIX
+                            label="&preferencesCmdUnix.label;"
+#else
+                            label="&preferencesCmd.label;"
+#endif
+                            oncommand="openPreferences();"/>
+                  <menuseparator/>
+                  <menuseparator/>
+                  <menuitem id="appmenu_toggleTabsOnTop"
+                            label="&viewTabsOnTop.label;"
+                            type="checkbox"
+                            command="cmd_ToggleTabsOnTop"/>
+                  <menuitem id="appmenu_toolbarLayout"
+                            label="&appMenuToolbarLayout.label;"
+                            command="cmd_CustomizeToolbars"/>
+                </menupopup>
+              </menu>
+            </hbox>
+            <hbox class="split-menuitem">
+              <menuitem id="appmenu_help"
+                        class="split-menuitem-item"
+                        flex="1"
+                        label="&helpMenu.label;"
+                        oncommand="openHelpLink('firefox-help')"/>
+              <menu class="split-menuitem-menu">
+                <menupopup id="appmenu_helpMenupopup">
+                  <menuitem id="appmenu_openHelp"
+                            label="&helpMenu.label;"
+                            oncommand="openHelpLink('firefox-help')"
+                            onclick="checkForMiddleClick(this, event);"/>
+                  <menuitem id="appmenu_gettingStarted"
+                            label="&appMenuGettingStarted.label;"
+                            oncommand="gBrowser.loadOneTab('http://www.mozilla.com/firefox/central/', {inBackground: false});"
+                            onclick="checkForMiddleClick(this, event);"/>
+                  <menuitem id="appmenu_troubleshootingInfo"
+                            label="&helpTroubleshootingInfo.label;"
+                            oncommand="openTroubleshootingPage()"
+                            onclick="checkForMiddleClick(this,event);"/>
+                  <menuseparator/>
+                  <menuitem id="appmenu_safeMode"
+                            accesskey="&appMenuSafeMode.accesskey;"
+                            label="&appMenuSafeMode.label;"
+                            oncommand="safeModeRestart();"/>
+                  <menuseparator/>
+                  <menuitem id="appmenu_about"
+                            label="&aboutProduct.label;"
+                            oncommand="openAboutDialog();"/>
+                </menupopup>
+              </menu>
+            </hbox>
+#ifdef MOZ_SERVICES_SYNC
+            <spacer flex="1"/>
+            <!-- only one of sync-setup or sync-syncnow will be showing at once -->
+            <menuitem id="sync-setup-appmenu"
+                      label="&syncSetup.label;"
+                      observes="sync-setup-state"
+                      oncommand="gSyncUI.openSetup()"/>
+            <menuitem id="sync-syncnowitem-appmenu"
+                      label="&syncSyncNowItem.label;"
+                      observes="sync-syncnow-state"
+                      oncommand="gSyncUI.doSync(event);"/>
+#endif
+        </vbox>
+      </hbox>
+    </menupopup>
+  </button>
+  </hbox>
+  <spacer id="titlebar-spacer" flex="1"/>
+  <hbox id="titlebar-buttonbox">
+    <toolbarbutton id="titlebar-min" oncommand="window.minimize();"/>
+    <toolbarbutton id="titlebar-max" oncommand="onTitlebarMaxClick();"/>
+    <toolbarbutton id="titlebar-close" command="cmd_closeWindow"/>
+  </hbox>
+  </hbox>
+  </vbox>
+#endif
+
+<deck flex="1" id="tab-view-deck">
+<vbox flex="1">
+
+  <toolbox id="navigator-toolbox"
+           defaultmode="icons" mode="icons"
+#ifdef WINCE
+           defaulticonsize="small" iconsize="small"
+#endif
+#ifdef XP_WIN
+           tabsontop="true"
+#endif
+#ifdef XP_MACOSX
+           tabsontop="true"
+#endif
+           persist="tabsontop">
+    <!-- Menu -->
+    <toolbar type="menubar" id="toolbar-menubar" class="chromeclass-menubar" customizable="true"
+             defaultset="menubar-items"
+             mode="icons" iconsize="small" defaulticonsize="small"
+             lockiconsize="true"
+#ifdef MENUBAR_CAN_AUTOHIDE
+             toolbarname="&menubarCmd.label;"
+             accesskey="&menubarCmd.accesskey;"
+#endif
+             context="toolbar-context-menu">
+      <toolbaritem id="menubar-items" align="center">
+# The entire main menubar is placed into browser-menubar.inc, so that it can be shared by 
+# hiddenWindow.xul.
+#include browser-menubar.inc
+      </toolbaritem>
+    </toolbar>
+
+    <toolbar id="nav-bar" class="toolbar-primary chromeclass-toolbar"
+             toolbarname="&navbarCmd.label;" accesskey="&navbarCmd.accesskey;"
+             fullscreentoolbar="true" mode="icons" customizable="true"
+#ifdef WINCE
+             iconsize="small" defaulticonsize="small"
+             defaultset="unified-back-forward-button,home-button,urlbar-container,reload-button,stop-button,search-container,bookmarks-menu-button-container,navigator-throbber,fullscreenflex,window-controls"
+#else
+             iconsize="large"
+             defaultset="unified-back-forward-button,home-button,urlbar-container,reload-button,stop-button,search-container,bookmarks-menu-button-container,fullscreenflex,window-controls"
+#endif
+             context="toolbar-context-menu">
+
+      <toolbaritem id="unified-back-forward-button" class="chromeclass-toolbar-additional"
+                   context="backForwardMenu" removable="true"
+                   title="&backForwardItem.title;">
+        <toolbarbutton id="back-button" class="toolbarbutton-1"
+                       label="&backCmd.label;"
+                       command="Browser:BackOrBackDuplicate"
+                       onclick="checkForMiddleClick(this, event);"
+                       tooltiptext="&backButton.tooltip;"/>
+        <toolbarbutton id="forward-button" class="toolbarbutton-1"
+                       label="&forwardCmd.label;"
+                       command="Browser:ForwardOrForwardDuplicate"
+                       onclick="checkForMiddleClick(this, event);"
+                       tooltiptext="&forwardButton.tooltip;"/>
+        <toolbarbutton id="back-forward-dropmarker" type="menu"
+                       disabled="true" tooltiptext="&backForwardMenu.tooltip;"
+                       onbroadcast="if (this.disabled) this.disabled =
+                                      document.getElementById('Browser:Back').hasAttribute('disabled') &amp;&amp;
+                                      document.getElementById('Browser:Forward').hasAttribute('disabled');">
+          <!-- bug 415444: event.stopPropagation is here for the cloned version of
+               this menupopup -->
+          <menupopup context=""
+                     position="after_start"
+                     onpopupshowing="return FillHistoryMenu(event.target);"
+                     oncommand="gotoHistoryIndex(event); event.stopPropagation();"
+                     onclick="checkForMiddleClick(this, event);"/>
+          <observes element="Browser:Back" attribute="disabled"/>
+          <observes element="Browser:Forward" attribute="disabled"/>
+        </toolbarbutton>
+      </toolbaritem>
+
+      <toolbarbutton id="home-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     persist="class" removable="true"
+                     label="&homeButton.label;"
+                     ondragover="homeButtonObserver.onDragOver(event)"
+                     ondragenter="homeButtonObserver.onDragOver(event)"
+                     ondrop="homeButtonObserver.onDrop(event)"
+                     ondragleave="homeButtonObserver.onDragLeave(event)"
+                     onclick="BrowserGoHome(event);"
+                     aboutHomeOverrideTooltip="&abouthome.pageTitle;"/>
+
+      <toolbaritem id="urlbar-container" align="center" flex="400" persist="width" combined="true"
+                   title="&locationItem.title;" class="chromeclass-location" removable="true">
+        <textbox id="urlbar" flex="1"
+                 placeholder="&urlbar.placeholder;"
+                 type="autocomplete"
+                 autocompletesearch="history"
+                 autocompletesearchparam="enable-actions"
+                 autocompletepopup="PopupAutoCompleteRichResult"
+                 completeselectedindex="true"
+                 tabscrolling="true"
+                 showcommentcolumn="true"
+                 showimagecolumn="true"
+                 enablehistory="true"
+                 maxrows="6"
+                 newlines="stripsurroundingwhitespace"
+                 oninput="gBrowser.userTypedValue = this.value;"
+                 ontextentered="this.handleCommand(param);"
+                 ontextreverted="return this.handleRevert();"
+                 pageproxystate="invalid"
+                 onsearchbegin="LocationBarHelpers._searchBegin();"
+                 onsearchcomplete="LocationBarHelpers._searchComplete();"
+                 onfocus="document.getElementById('identity-box').style.MozUserFocus= 'normal'"
+                 onblur="setTimeout(function() document.getElementById('identity-box').style.MozUserFocus = '', 0);">
+          <box id="notification-popup-box" hidden="true" align="center">
+            <image id="geo-notification-icon" class="notification-anchor-icon" role="button"/>
+            <image id="addons-notification-icon" class="notification-anchor-icon" role="button"/>
+            <image id="indexedDB-notification-icon" class="notification-anchor-icon" role="button"/>
+            <image id="password-notification-icon" class="notification-anchor-icon" role="button"/>
+          </box>
+          <!-- Use onclick instead of normal popup= syntax since the popup
+               code fires onmousedown, and hence eats our favicon drag events.
+               We only add the identity-box button to the tab order when the location bar
+               has focus, otherwise pressing F6 focuses it instead of the location bar -->
+          <box id="identity-box" role="button"
+               onclick="gIdentityHandler.handleIdentityButtonEvent(event);"
+               onkeypress="gIdentityHandler.handleIdentityButtonEvent(event);"
+               ondragstart="gIdentityHandler.onDragStart(event);">
+            <hbox id="identity-box-inner" align="center">
+              <stack id="page-proxy-stack"
+                     onclick="PageProxyClickHandler(event);">
+                <image id="urlbar-throbber" busy="false"/>
+                <image id="page-proxy-favicon" validate="never"
+                       pageproxystate="invalid"
+                       onerror="this.removeAttribute('src');"/>
+              </stack>
+              <hbox id="identity-icon-labels">
+                <label id="identity-icon-label" class="plain" flex="1"/>
+                <label id="identity-icon-country-label" class="plain"/>
+              </hbox>
+            </hbox>
+          </box>
+          <label id="urlbar-display" value="&urlbar.switchToTab.label;"/>
+          <hbox id="urlbar-icons">
+            <image id="star-button"
+                   class="urlbar-icon"
+                   onclick="PlacesStarButton.onClick(event);"/>
+            <image id="go-button"
+                   class="urlbar-icon"
+                   tooltiptext="&goEndCap.tooltip;"
+                   onclick="gURLBar.handleCommand(event);"/>
+          </hbox>
+          <progressmeter id="urlbar-progress" mode="normal" value="0" collapsed="true"/>
+          <toolbarbutton id="urlbar-go-button"
+                         onclick="gURLBar.handleCommand(event);"
+                         tooltiptext="&goEndCap.tooltip;"/>
+          <toolbarbutton id="urlbar-reload-button"
+                         command="Browser:ReloadOrDuplicate"
+                         onclick="checkForMiddleClick(this, event);"
+                         tooltiptext="&reloadButton.tooltip;"/>
+          <toolbarbutton id="urlbar-stop-button"
+                         command="Browser:Stop"
+                         tooltiptext="&stopButton.tooltip;"/>
+        </textbox>
+      </toolbaritem>
+
+      <toolbarbutton id="reload-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&reloadCmd.label;" removable="true"
+                     command="Browser:ReloadOrDuplicate"
+                     onclick="checkForMiddleClick(this, event);"
+                     tooltiptext="&reloadButton.tooltip;"/>
+
+      <toolbarbutton id="stop-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&stopCmd.label;" removable="true"
+                     command="Browser:Stop"
+                     tooltiptext="&stopButton.tooltip;"/>
+
+      <toolbaritem id="search-container" title="&searchItem.title;"
+                   align="center" class="chromeclass-toolbar-additional"
+                   flex="100" persist="width" removable="true">
+        <searchbar id="searchbar" flex="1"/>
+      </toolbaritem>
+
+      <toolbaritem id="bookmarks-menu-button-container"
+                   class="chromeclass-toolbar-additional"
+                   removable="true"
+                   title="&bookmarksMenuButton.label;">
+        <toolbarbutton id="bookmarks-menu-button"
+                       type="menu"
+                       class="toolbarbutton-1"
+                       label="&bookmarksMenuButton.label;"
+                       tooltiptext="&bookmarksMenuButton.tooltip;"
+                       ondragenter="PlacesMenuDNDHandler.onDragEnter(event);"
+                       ondragover="PlacesMenuDNDHandler.onDragOver(event);"
+                       ondragleave="PlacesMenuDNDHandler.onDragLeave(event);"
+                       ondrop="PlacesMenuDNDHandler.onDrop(event);">
+          <menupopup id="BMB_bookmarksPopup"
+                     placespopup="true"
+                     context="placesContext"
+                     openInTabs="children"
+                     oncommand="BookmarksEventHandler.onCommand(event);"
+                     onclick="BookmarksEventHandler.onClick(event);"
+                     onpopupshowing="BookmarksMenuButton.onPopupShowing(event);
+                                     if (!this.parentNode._placesView)
+                                       new PlacesMenu(event, 'place:folder=BOOKMARKS_MENU');"
+                     tooltip="bhTooltip" popupsinherittooltip="true">
+            <menuitem id="BMB_viewBookmarksToolbar"
+                      placesanonid="view-toolbar"
+                      toolbarId="PersonalToolbar"
+                      type="checkbox"
+                      oncommand="onViewToolbarCommand(event)"
+                      label="&viewBookmarksToolbar.label;"/>
+            <menuseparator/>
+            <menuitem id="BMB_bookmarksShowAll"
+                      label="&showAllBookmarks.label;"
+                      command="Browser:ShowAllBookmarks"
+                      key="manBookmarkKb"/>
+            <menuseparator/>
+            <menuitem id="BMB_bookmarkThisPage"
+                      class="menuitem-iconic"
+                      label="&bookmarkThisPageCmd.label;"
+                      command="Browser:AddBookmarkAs"
+                      key="addBookmarkAsKb"/>
+            <menuitem id="BMB_subscribeToPageMenuitem"
+                      label="&subscribeToPageMenuitem.label;"
+                      oncommand="return FeedHandler.subscribeToFeed(null, event);"
+                      onclick="checkForMiddleClick(this, event);"
+                      observes="singleFeedMenuitemState"/>
+            <menu id="BMB_subscribeToPageMenupopup"
+                  label="&subscribeToPageMenupopup.label;"
+                  observes="multipleFeedsMenuState">
+              <menupopup id="BMB_subscribeToPageSubmenuMenupopup"
+                         onpopupshowing="return FeedHandler.buildFeedList(event.target);"
+                         oncommand="return FeedHandler.subscribeToFeed(null, event);"
+                         onclick="checkForMiddleClick(this, event);"/>
+            </menu>
+            <menuseparator/>
+            <menu id="BMB_bookmarksToolbar"
+                  placesanonid="toolbar-autohide"
+                  class="menu-iconic bookmark-item"
+                  label="&personalbarCmd.label;"
+                  container="true">
+              <menupopup id="BMB_bookmarksToolbarPopup"
+                         placespopup="true"
+                         context="placesContext"
+                         onpopupshowing="if (!this.parentNode._placesView)
+                                           new PlacesMenu(event, 'place:folder=TOOLBAR');"/>
+            </menu>
+            <menuseparator/>
+            <!-- Bookmarks menu items -->
+            <menuseparator builder="end"
+                           class="hide-if-empty-places-result"/>
+            <menuitem id="BMB_unsortedBookmarks"
+                      label="&bookmarksMenuButton.unsorted.label;"
+                      oncommand="PlacesCommandHook.showPlacesOrganizer('UnfiledBookmarks');"
+                      class="menuitem-iconic"/>
+          </menupopup>
+        </toolbarbutton>
+      </toolbaritem>
+
+      <hbox id="fullscreenflex" flex="1" hidden="true" fullscreencontrol="true"/>
+      <hbox id="window-controls" hidden="true" fullscreencontrol="true">
+        <toolbarbutton id="minimize-button"
+                       tooltiptext="&fullScreenMinimize.tooltip;"
+                       oncommand="window.minimize();"/>
+
+        <toolbarbutton id="restore-button"
+                       tooltiptext="&fullScreenRestore.tooltip;"
+                       oncommand="BrowserFullScreen();"/>
+
+        <toolbarbutton id="close-button"
+                       tooltiptext="&fullScreenClose.tooltip;"
+                       oncommand="BrowserTryToCloseWindow();"/>
+      </hbox>
+    </toolbar>
+
+    <toolbarset id="customToolbars" context="toolbar-context-menu"/>
+
+    <toolbar id="PersonalToolbar"
+             mode="icons" iconsize="small" defaulticonsize="small"
+             lockiconsize="true"
+             class="chromeclass-directories"
+             context="toolbar-context-menu"
+             defaultset="personal-bookmarks"
+             toolbarname="&personalbarCmd.label;" accesskey="&personalbarCmd.accesskey;"
+             collapsed="true"
+             customizable="true">
+      <toolbaritem flex="1" id="personal-bookmarks" title="&bookmarksItem.title;"
+                   removable="true">
+        <hbox flex="1"
+              id="PlacesToolbar"
+              context="placesContext"
+              onclick="BookmarksEventHandler.onClick(event);"
+              oncommand="BookmarksEventHandler.onCommand(event);"
+              tooltip="bhTooltip"
+              popupsinherittooltip="true">
+          <toolbarbutton class="bookmark-item bookmarks-toolbar-customize"
+                         mousethrough="never"
+                         label="&bookmarksToolbarItem.label;"/>
+          <hbox flex="1">
+            <hbox align="center">
+              <image id="PlacesToolbarDropIndicator"
+                     mousethrough="always"
+                     collapsed="true"/>
+            </hbox>
+            <scrollbox orient="horizontal"
+                       id="PlacesToolbarItems"
+                       flex="1"/>
+            <toolbarbutton type="menu"
+                           id="PlacesChevron"
+                           class="chevron"
+                           mousethrough="never"
+                           collapsed="true"
+                           tooltiptext="&bookmarksToolbarChevron.tooltip;"
+                           onpopupshowing="document.getElementById('PlacesToolbar')
+                                                   ._placesView._onChevronPopupShowing(event);">
+              <menupopup id="PlacesChevronPopup"
+                         placespopup="true"
+                         tooltip="bhTooltip" popupsinherittooltip="true"
+                         context="placesContext"/>
+            </toolbarbutton>
+          </hbox>
+        </hbox>
+      </toolbaritem>
+    </toolbar>
+
+    <toolbar id="TabsToolbar"
+             fullscreentoolbar="true"
+             customizable="true"
+             mode="icons" lockmode="true"
+             iconsize="small" defaulticonsize="small" lockiconsize="true"
+             aria-label="&tabsToolbar.label;"
+             context="toolbar-context-menu"
+             defaultset="tabbrowser-tabs,new-tab-button,alltabs-button,tabview-button,tabs-closebutton"
+             collapsed="true">
+
+      <tabs id="tabbrowser-tabs"
+            class="tabbrowser-tabs"
+            tabbrowser="content"
+            flex="1"
+            setfocus="false"
+            tooltip="tabbrowser-tab-tooltip">
+        <tab class="tabbrowser-tab" selected="true" fadein="true"/>
+      </tabs>
+
+      <toolbarbutton id="new-tab-button"
+                     class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&tabCmd.label;"
+                     command="cmd_newNavigatorTab"
+                     onclick="checkForMiddleClick(this, event);"
+                     tooltiptext="&newTabButton.tooltip;"
+                     ondrop="newTabButtonObserver.onDrop(event)"
+                     ondragover="newTabButtonObserver.onDragOver(event)"
+                     ondragenter="newTabButtonObserver.onDragOver(event)"
+                     ondragleave="newTabButtonObserver.onDragLeave(event)"
+                     removable="true"/>
+
+      <toolbarbutton id="alltabs-button"
+                     class="toolbarbutton-1 chromeclass-toolbar-additional tabs-alltabs-button"
+                     type="menu"
+                     label="&listAllTabs.label;"
+                     tooltiptext="&listAllTabs.label;"
+                     removable="true">
+        <menupopup id="alltabs-popup"
+                   position="after_end"/>
+      </toolbarbutton>
+
+      <toolbarbutton id="tabview-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&tabGroupsButton.label;"
+                     command="Browser:ToggleTabView"
+                     tooltiptext="&tabGroupsButton.tooltip;"
+                     removable="true"
+                     observes="tabviewGroupsNumber"/>
+
+      <toolbarbutton id="tabs-closebutton"
+                     class="close-button tabs-closebutton"
+                     command="cmd_close"
+                     label="&closeTab.label;"
+                     tooltiptext="&closeTab.label;"/>
+
+    </toolbar>
+
+    <toolbarpalette id="BrowserToolbarPalette">
+
+# Update primaryToolbarButtons in browser/themes/browserShared.inc when adding
+# or removing default items with the toolbarbutton-1 class.
+
+      <toolbarbutton id="print-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&printButton.label;" command="cmd_print"
+                     tooltiptext="&printButton.tooltip;"/>
+
+      <toolbaritem id="navigator-throbber" title="&throbberItem.title;" align="center" pack="center"
+                   mousethrough="always">
+        <image/>
+      </toolbaritem>
+
+      <toolbarbutton id="downloads-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     observes="Tools:Downloads"
+                     ondrop="DownloadsButtonDNDObserver.onDrop(event)"
+                     ondragover="DownloadsButtonDNDObserver.onDragOver(event)"
+                     ondragenter="DownloadsButtonDNDObserver.onDragOver(event)"
+                     ondragleave="DownloadsButtonDNDObserver.onDragLeave(event)"
+                     label="&downloads.label;"
+                     tooltiptext="&downloads.tooltip;"/>
+
+      <toolbarbutton id="history-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     observes="viewHistorySidebar" label="&historyButton.label;"
+                     tooltiptext="&historyButton.tooltip;"/>
+
+      <toolbarbutton id="bookmarks-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     observes="viewBookmarksSidebar"
+                     tooltiptext="&bookmarksButton.tooltip;"
+                     ondrop="bookmarksButtonObserver.onDrop(event)"
+                     ondragover="bookmarksButtonObserver.onDragOver(event)"
+                     ondragenter="bookmarksButtonObserver.onDragOver(event)"
+                     ondragleave="bookmarksButtonObserver.onDragLeave(event)"/>
+
+      <toolbarbutton id="new-window-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&newNavigatorCmd.label;"
+                     command="key_newNavigator"
+                     tooltiptext="&newWindowButton.tooltip;"
+                     ondrop="newWindowButtonObserver.onDrop(event)"
+                     ondragover="newWindowButtonObserver.onDragOver(event)"
+                     ondragenter="newWindowButtonObserver.onDragOver(event)"
+                     ondragleave="newWindowButtonObserver.onDragLeave(event)"/>
+
+      <toolbarbutton id="cut-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&cutCmd.label;"
+                     command="cmd_cut"
+                     tooltiptext="&cutButton.tooltip;"/>
+
+      <toolbarbutton id="copy-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&copyCmd.label;"
+                     command="cmd_copy"
+                     tooltiptext="&copyButton.tooltip;"/>
+
+      <toolbarbutton id="paste-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&pasteCmd.label;"
+                     command="cmd_paste"
+                     tooltiptext="&pasteButton.tooltip;"/>
+
+      <toolbarbutton id="fullscreen-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     observes="View:FullScreen"
+                     type="checkbox"
+                     label="&fullScreenCmd.label;"
+                     tooltiptext="&fullScreenButton.tooltip;"/>
+
+      <toolbaritem id="zoom-controls" class="chromeclass-toolbar-additional"
+                   title="&zoomControls.label;">
+        <toolbarbutton id="zoom-out-button" class="toolbarbutton-1"
+                       label="&fullZoomReduceCmd.label;"
+                       command="cmd_fullZoomReduce"
+                       tooltiptext="&zoomOutButton.tooltip;"/>
+        <toolbarbutton id="zoom-in-button" class="toolbarbutton-1"
+                       label="&fullZoomEnlargeCmd.label;"
+                       command="cmd_fullZoomEnlarge"
+                       tooltiptext="&zoomInButton.tooltip;"/>
+      </toolbaritem>
+#ifdef MOZ_SERVICES_SYNC
+      <toolbarbutton id="sync-button"
+                     class="toolbarbutton-1 chromeclass-toolbar-additional"
+                     label="&syncToolbarButton.label;"
+                     oncommand="gSyncUI.handleToolbarButton()"/>
+#endif
+    </toolbarpalette>
+  </toolbox>
+
+  <hbox flex="1" id="browser">
+    <vbox id="sidebar-box" hidden="true" class="chromeclass-extrachrome">
+      <sidebarheader id="sidebar-header" align="center">
+        <label id="sidebar-title" persist="value" flex="1" crop="end" control="sidebar"/>
+        <image id="sidebar-throbber"/>
+        <toolbarbutton class="tabs-closebutton" tooltiptext="&sidebarCloseButton.tooltip;" oncommand="toggleSidebar();"/>
+      </sidebarheader>
+      <browser id="sidebar" flex="1" autoscroll="false" disablehistory="true"
+                style="min-width: 14em; width: 18em; max-width: 36em;"/>
+    </vbox>
+
+    <splitter id="sidebar-splitter" class="chromeclass-extrachrome" hidden="true"/>
+    <vbox id="appcontent" flex="1">
+      <tabbrowser id="content" disablehistory="true"
+                  flex="1" contenttooltip="aHTMLTooltip"
+                  tabcontainer="tabbrowser-tabs"
+                  contentcontextmenu="contentAreaContextMenu"
+                  autocompletepopup="PopupAutoComplete"
+                  onclick="return contentAreaClick(event, false);"/>
+    </vbox>
+  </hbox>
+
+  <vbox id="browser-bottombox" layer="true">
+    <toolbar id="addon-bar" toolbarname="&addonBarCmd.label;" collapsed="true"
+             class="toolbar-primary chromeclass-toolbar"
+             context="toolbar-context-menu" toolboxid="navigator-toolbox"
+             mode="icons" iconsize="small" defaulticonsize="small"
+             lockiconsize="true"
+             customizable="true" align="right">
+      <statusbar id="status-bar"/>
+    </toolbar>
+  </vbox>
+
+#ifndef XP_UNIX
+  <svg:svg height="0">
+    <svg:mask id="winstripe-keyhole-forward-mask" maskContentUnits="objectBoundingBox">
+      <svg:rect x="0" y="0" width="1" height="1" fill="white"/>
+      <svg:circle cx="-0.46" cy="0.5" r="0.63"/>
+    </svg:mask>
+    <svg:mask id="winstripe-keyhole-forward-mask-hover" maskContentUnits="objectBoundingBox">
+      <svg:rect x="0" y="0" width="1" height="1" fill="white"/>
+      <svg:circle cx="-0.35" cy="0.5" r="0.58"/>
+    </svg:mask>
+  </svg:svg>
+#endif
+
+</vbox>
+# <iframe id="tab-view"> is dynamically appended as the 2nd child of #tab-view-deck.
+#     Introducing the iframe dynamically, as needed, was found to be better than
+#     starting with an empty iframe here in browser.xul from a Ts standpoint.
+</deck>
+
+</window>
diff --git a/browser/base/jar.mn b/browser/base/jar.mn
--- a/browser/base/jar.mn
+++ b/browser/base/jar.mn
@@ -20,16 +20,18 @@ browser.jar:
 *       content/browser/aboutHome.xhtml               (content/aboutHome.xhtml)
 *       content/browser/aboutHome.js                  (content/aboutHome.js)
 *       content/browser/aboutHome.css                 (content/aboutHome.css)
         content/browser/aboutRobots-icon.png          (content/aboutRobots-icon.png)
         content/browser/aboutRobots-widget-left.png   (content/aboutRobots-widget-left.png)
 *       content/browser/browser.css                   (content/browser.css)
 *       content/browser/browser.js                    (content/browser.js)
 *       content/browser/browser.xul                   (content/browser.xul)
+*       content/browser/browser-kde.xul               (content/browser-kde.xul)
+%       override chrome://browser/content/browser.xul chrome://browser/content/browser-kde.xul desktop=kde
 *       content/browser/browser-tabPreviews.xml       (content/browser-tabPreviews.xml)
 *       content/browser/fullscreen-video.xhtml        (content/fullscreen-video.xhtml)
 *       content/browser/inspector.html                (content/inspector.html)
 *       content/browser/pageinfo/pageInfo.xul         (content/pageinfo/pageInfo.xul)
 *       content/browser/pageinfo/pageInfo.js          (content/pageinfo/pageInfo.js)
 *       content/browser/pageinfo/pageInfo.css         (content/pageinfo/pageInfo.css)
 *       content/browser/pageinfo/pageInfo.xml         (content/pageinfo/pageInfo.xml)
 *       content/browser/pageinfo/feeds.js             (content/pageinfo/feeds.js)
diff --git a/browser/components/build/nsModule.cpp b/browser/components/build/nsModule.cpp
--- a/browser/components/build/nsModule.cpp
+++ b/browser/components/build/nsModule.cpp
@@ -41,17 +41,17 @@
 #include "nsBrowserCompsCID.h"
 #include "DirectoryProvider.h"
 
 #if defined(XP_WIN)
 #include "nsWindowsShellService.h"
 #elif defined(XP_MACOSX)
 #include "nsMacShellService.h"
 #elif defined(MOZ_WIDGET_GTK2)
-#include "nsGNOMEShellService.h"
+#include "nsUnixShellService.h"
 #endif
 
 #ifndef WINCE
 
 #include "nsProfileMigrator.h"
 #if !defined(XP_BEOS)
 #include "nsDogbertProfileMigrator.h"
 #endif
@@ -84,18 +84,16 @@ using namespace mozilla::browser;
 
 /////////////////////////////////////////////////////////////////////////////
 
 NS_GENERIC_FACTORY_CONSTRUCTOR(DirectoryProvider)
 #if defined(XP_WIN)
 NS_GENERIC_FACTORY_CONSTRUCTOR(nsWindowsShellService)
 #elif defined(XP_MACOSX)
 NS_GENERIC_FACTORY_CONSTRUCTOR(nsMacShellService)
-#elif defined(MOZ_WIDGET_GTK2)
-NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsGNOMEShellService, Init)
 #endif
 
 #ifndef WINCE
 
 #if !defined(XP_BEOS)
 NS_GENERIC_FACTORY_CONSTRUCTOR(nsDogbertProfileMigrator)
 #endif
 #if !defined(XP_OS2)
@@ -151,17 +149,17 @@ NS_DEFINE_NAMED_CID(NS_SEAMONKEYPROFILEM
 #endif /* WINCE */
 NS_DEFINE_NAMED_CID(NS_PRIVATE_BROWSING_SERVICE_WRAPPER_CID);
 
 static const mozilla::Module::CIDEntry kBrowserCIDs[] = {
     { &kNS_BROWSERDIRECTORYPROVIDER_CID, false, NULL, DirectoryProviderConstructor },
 #if defined(XP_WIN)
     { &kNS_SHELLSERVICE_CID, false, NULL, nsWindowsShellServiceConstructor },
 #elif defined(MOZ_WIDGET_GTK2)
-    { &kNS_SHELLSERVICE_CID, false, NULL, nsGNOMEShellServiceConstructor },
+    { &kNS_SHELLSERVICE_CID, false, NULL, nsUnixShellServiceConstructor },
 #endif
     { &kNS_FEEDSNIFFER_CID, false, NULL, nsFeedSnifferConstructor },
     { &kNS_BROWSER_ABOUT_REDIRECTOR_CID, false, NULL, AboutRedirector::Create },
 #ifndef WINCE
     { &kNS_FIREFOX_PROFILEMIGRATOR_CID, false, NULL, nsProfileMigratorConstructor },
 #if defined(XP_WIN) && !defined(__MINGW32__)
     { &kNS_WINIEPROFILEMIGRATOR_CID, false, NULL, nsIEProfileMigratorConstructor },
 #elif defined(XP_MACOSX)
diff --git a/browser/components/shell/src/Makefile.in b/browser/components/shell/src/Makefile.in
--- a/browser/components/shell/src/Makefile.in
+++ b/browser/components/shell/src/Makefile.in
@@ -52,17 +52,18 @@ endif
 
 ifneq (,$(filter WINCE WINNT,$(OS_ARCH)))
 CPPSRCS = nsWindowsShellService.cpp
 else
 ifeq (cocoa,$(MOZ_WIDGET_TOOLKIT))
 CPPSRCS = nsMacShellService.cpp
 else
 ifeq ($(MOZ_WIDGET_TOOLKIT), gtk2)
-CPPSRCS = nsGNOMEShellService.cpp
+CPPSRCS = nsUnixShellService.cpp nsGNOMEShellService.cpp nsKDEShellService.cpp
+LOCAL_INCLUDES += -I$(topsrcdir)/toolkit/xre
 endif
 endif
 endif
 
 ifdef CPPSRCS
 LIBRARY_NAME = shellservice_s
 endif
 
diff --git a/browser/components/shell/src/nsKDEShellService.cpp b/browser/components/shell/src/nsKDEShellService.cpp
new file mode 100644
--- /dev/null
+++ b/browser/components/shell/src/nsKDEShellService.cpp
@@ -0,0 +1,193 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Shell Service.
+ *
+ * The Initial Developer of the Original Code is mozilla.org.
+ * Portions created by the Initial Developer are Copyright (C) 2004
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsKDEShellService.h"
+#include "nsShellService.h"
+#include "nsKDEUtils.h"
+#include "nsCOMPtr.h"
+#include "nsIPrefService.h"
+#include "nsIProcess.h"
+#include "nsILocalFile.h"
+#include "nsServiceManagerUtils.h"
+#include "nsComponentManagerUtils.h"
+
+nsresult
+nsKDEShellService::Init()
+    {
+    if( !nsKDEUtils::kdeSupport())
+        return NS_ERROR_NOT_AVAILABLE;
+    return NS_OK;
+    }
+
+NS_IMPL_ISUPPORTS1(nsKDEShellService, nsIShellService)
+
+NS_IMETHODIMP
+nsKDEShellService::IsDefaultBrowser(PRBool aStartupCheck,
+                                      PRBool* aIsDefaultBrowser)
+    {
+    *aIsDefaultBrowser = PR_FALSE;
+    if (aStartupCheck)
+        mCheckedThisSession = PR_TRUE;
+    nsCStringArray command;
+    command.AppendCString( NS_LITERAL_CSTRING( "ISDEFAULTBROWSER" ));
+    if( nsKDEUtils::command( command ))
+        *aIsDefaultBrowser = PR_TRUE;
+    return NS_OK;
+    }
+
+NS_IMETHODIMP
+nsKDEShellService::SetDefaultBrowser(PRBool aClaimAllTypes,
+                                       PRBool aForAllUsers)
+    {
+    nsCStringArray command;
+    command.AppendCString( NS_LITERAL_CSTRING( "SETDEFAULTBROWSER" ));
+    command.AppendCString( aClaimAllTypes ? NS_LITERAL_CSTRING( "ALLTYPES" ) : NS_LITERAL_CSTRING( "NORMAL" ));
+    return nsKDEUtils::command( command ) ? NS_OK : NS_ERROR_FAILURE;
+    }
+
+NS_IMETHODIMP
+nsKDEShellService::GetShouldCheckDefaultBrowser(PRBool* aResult)
+{
+  // If we've already checked, the browser has been started and this is a 
+  // new window open, and we don't want to check again.
+  if (mCheckedThisSession) {
+    *aResult = PR_FALSE;
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsIPrefBranch> prefs;
+  nsCOMPtr<nsIPrefService> pserve(do_GetService(NS_PREFSERVICE_CONTRACTID));
+  if (pserve)
+    pserve->GetBranch("", getter_AddRefs(prefs));
+
+  if (prefs)
+    prefs->GetBoolPref(PREF_CHECKDEFAULTBROWSER, aResult);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsKDEShellService::SetShouldCheckDefaultBrowser(PRBool aShouldCheck)
+{
+  nsCOMPtr<nsIPrefBranch> prefs;
+  nsCOMPtr<nsIPrefService> pserve(do_GetService(NS_PREFSERVICE_CONTRACTID));
+  if (pserve)
+    pserve->GetBranch("", getter_AddRefs(prefs));
+
+  if (prefs)
+    prefs->SetBoolPref(PREF_CHECKDEFAULTBROWSER, aShouldCheck);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsKDEShellService::SetDesktopBackground(nsIDOMElement* aElement, 
+                                          PRInt32 aPosition)
+    {
+    return NS_ERROR_NOT_IMPLEMENTED;
+    }
+
+NS_IMETHODIMP
+nsKDEShellService::GetDesktopBackgroundColor(PRUint32 *aColor)
+    {
+    return NS_ERROR_NOT_IMPLEMENTED;
+    }
+
+NS_IMETHODIMP
+nsKDEShellService::SetDesktopBackgroundColor(PRUint32 aColor)
+    {
+    return NS_ERROR_NOT_IMPLEMENTED;
+    }
+
+NS_IMETHODIMP
+nsKDEShellService::OpenApplication(PRInt32 aApplication)
+    {
+    nsCStringArray command;
+    if( aApplication == APPLICATION_MAIL )
+        command.AppendCString( NS_LITERAL_CSTRING( "OPENMAIL" ));
+    else if( aApplication == APPLICATION_NEWS )
+        command.AppendCString( NS_LITERAL_CSTRING( "OPENNEWS" ));
+    else
+        return NS_ERROR_NOT_IMPLEMENTED;
+    return nsKDEUtils::command( command ) ? NS_OK : NS_ERROR_FAILURE;
+    }
+
+NS_IMETHODIMP
+nsKDEShellService::OpenApplicationWithURI(nsILocalFile* aApplication, const nsACString& aURI)
+    {
+    nsCStringArray command;
+    command.AppendCString( NS_LITERAL_CSTRING( "RUN" ));
+    nsCString app;
+    nsresult rv = aApplication->GetNativePath( app );
+    NS_ENSURE_SUCCESS( rv, rv );
+    command.AppendCString( app );
+    command.AppendCString( aURI );
+    return nsKDEUtils::command( command ) ? NS_OK : NS_ERROR_FAILURE;
+    }
+
+NS_IMETHODIMP
+nsKDEShellService::GetDefaultFeedReader(nsILocalFile** _retval)
+    {
+    *_retval = nsnull;
+
+    nsCStringArray command;
+    command.AppendCString( NS_LITERAL_CSTRING( "GETDEFAULTFEEDREADER" ));
+    nsCStringArray output;
+    if( !nsKDEUtils::command( command, &output ) || output.Count() != 1 )
+        return NS_ERROR_FAILURE;
+
+    nsCString path;
+    path = *output[ 0 ];
+    if (path.IsEmpty())
+        return NS_ERROR_FAILURE;
+
+    nsresult rv;
+    nsCOMPtr<nsILocalFile> defaultReader =
+        do_CreateInstance("@mozilla.org/file/local;1", &rv);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = defaultReader->InitWithNativePath(path);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    PRBool exists;
+    rv = defaultReader->Exists(&exists);
+    NS_ENSURE_SUCCESS(rv, rv);
+    if (!exists)
+        return NS_ERROR_FAILURE;
+
+    NS_ADDREF(*_retval = defaultReader);
+    return NS_OK;
+    }
diff --git a/browser/components/shell/src/nsKDEShellService.h b/browser/components/shell/src/nsKDEShellService.h
new file mode 100644
--- /dev/null
+++ b/browser/components/shell/src/nsKDEShellService.h
@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Shell Service.
+ *
+ * The Initial Developer of the Original Code is mozilla.org.
+ * Portions created by the Initial Developer are Copyright (C) 2004
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nskdeshellservice_h____
+#define nskdeshellservice_h____
+
+#include "nsIShellService.h"
+#include "nsStringAPI.h"
+
+class nsKDEShellService : public nsIShellService
+{
+public:
+  nsKDEShellService() : mCheckedThisSession(PR_FALSE) { }
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSISHELLSERVICE
+
+  nsresult Init() NS_HIDDEN;
+
+private:
+  ~nsKDEShellService() {}
+
+  PRPackedBool mCheckedThisSession;
+};
+
+#endif // nskdeshellservice_h____
diff --git a/browser/components/shell/src/nsUnixShellService.cpp b/browser/components/shell/src/nsUnixShellService.cpp
new file mode 100644
--- /dev/null
+++ b/browser/components/shell/src/nsUnixShellService.cpp
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Shell Service.
+ *
+ * The Initial Developer of the Original Code is mozilla.org.
+ * Portions created by the Initial Developer are Copyright (C) 2004
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsUnixShellService.h"
+#include "nsGNOMEShellService.h"
+#include "nsKDEShellService.h"
+#include "nsKDEUtils.h"
+#include "mozilla/ModuleUtils.h"
+
+NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsGNOMEShellService, Init)
+NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsKDEShellService, Init)
+
+NS_METHOD
+nsUnixShellServiceConstructor(nsISupports *aOuter, REFNSIID aIID, void **aResult)
+{
+    if( nsKDEUtils::kdeSupport())
+        return nsKDEShellServiceConstructor( aOuter, aIID, aResult );
+    return nsGNOMEShellServiceConstructor( aOuter, aIID, aResult );
+}
diff --git a/browser/components/shell/src/nsUnixShellService.h b/browser/components/shell/src/nsUnixShellService.h
new file mode 100644
--- /dev/null
+++ b/browser/components/shell/src/nsUnixShellService.h
@@ -0,0 +1,45 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Shell Service.
+ *
+ * The Initial Developer of the Original Code is mozilla.org.
+ * Portions created by the Initial Developer are Copyright (C) 2004
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nsunixshellservice_h____
+#define nsunixshellservice_h____
+
+#include "nsIShellService.h"
+
+NS_METHOD
+nsUnixShellServiceConstructor(nsISupports *aOuter, REFNSIID aIID, void **aResult);
+
+#endif // nsunixshellservice_h____
diff --git a/browser/installer/package-manifest.in b/browser/installer/package-manifest.in
--- a/browser/installer/package-manifest.in
+++ b/browser/installer/package-manifest.in
@@ -431,16 +431,17 @@
 #endif
 #endif
 
 ; [Default Preferences]
 ; All the pref files must be part of base to prevent migration bugs
 @BINPATH@/@PREF_DIR@/firefox.js
 @BINPATH@/@PREF_DIR@/firefox-branding.js
 @BINPATH@/@PREF_DIR@/channel-prefs.js
+@BINPATH@/@PREF_DIR@/kde.js
 #ifdef MOZ_SERVICES_SYNC
 @BINPATH@/@PREF_DIR@/services-sync.js
 #endif
 @BINPATH@/greprefs.js
 @BINPATH@/defaults/autoconfig/platform.js
 @BINPATH@/defaults/autoconfig/prefcalls.js
 @BINPATH@/defaults/profile/prefs.js
 
