diff --git a/.abf.yml b/.abf.yml
index a1f7e41..ba1d3db 100644
--- a/.abf.yml
+++ b/.abf.yml
@@ -1,3 +1,2 @@
 sources:
-  firefox-25.0.source.tar.bz2: 854722e283659d2b6b2eacd38f757b3c5b63a448
-  firefox-25.0.1.source.tar.bz2: 592ebd242c4839ef0e18707a7e959d8bed2a98f3
+  firefox-26.0.source.tar.bz2: f7c6642d6f62aea8d4eced48dd27aba0634edcd5
diff --git a/firefox-25-kde.patch b/firefox-26-kde.patch
similarity index 98%
rename from firefox-25-kde.patch
rename to firefox-26-kde.patch
index 5a4bc1a..b89366b 100644
--- a/firefox-25-kde.patch
+++ b/firefox-26-kde.patch
@@ -2,7 +2,7 @@ diff --git a/browser/base/content/browser-kde.xul b/browser/base/content/browser
 new file mode 100644
 --- /dev/null
 +++ b/browser/base/content/browser-kde.xul
-@@ -0,0 +1,1161 @@
+@@ -0,0 +1,1158 @@
 +#filter substitution
 +<?xml version="1.0"?>
 +# -*- Mode: HTML -*-
@@ -129,6 +129,9 @@ new file mode 100644
 +    <!-- for url bar autocomplete -->
 +    <panel type="autocomplete-richlistbox" id="PopupAutoCompleteRichResult" noautofocus="true" hidden="true"/>
 +
++    <!-- for select dropdowns -->
++    <menupopup id="ContentSelectDropdown" rolluponmousewheel="true" hidden="true"/>
++
 +    <!-- for invalid form error message -->
 +    <panel id="invalid-form-popup" type="arrow" orient="vertical" noautofocus="true" hidden="true" level="parent">
 +      <description/>
@@ -509,8 +512,6 @@ new file mode 100644
 +            <image id="webapps-notification-icon" class="notification-anchor-icon" role="button"/>
 +            <image id="plugins-notification-icon" class="notification-anchor-icon" role="button"/>
 +            <image id="web-notifications-notification-icon" class="notification-anchor-icon" role="button"/>
-+            <image id="alert-plugins-notification-icon" class="notification-anchor-icon" role="button"/>
-+            <image id="blocked-plugins-notification-icon" class="notification-anchor-icon" role="button"/>
 +            <image id="plugin-install-notification-icon" class="notification-anchor-icon" role="button"/>
 +            <image id="mixed-content-blocked-notification-icon" class="notification-anchor-icon" role="button"/>
 +            <image id="webRTC-shareDevices-notification-icon" class="notification-anchor-icon" role="button"/>
@@ -745,11 +746,6 @@ new file mode 100644
 +                      oncommand="SocialUI.showLearnMore();"/>
 +          </menupopup>
 +        </toolbarbutton>
-+        <toolbarbutton id="social-mark-button"
-+                       class="toolbarbutton-1"
-+                       hidden="true"
-+                       disabled="true"
-+                       command="Social:TogglePageMark"/>
 +      </toolbaritem>
 +
 +      <hbox id="window-controls" hidden="true" pack="end">
@@ -1029,7 +1025,8 @@ new file mode 100644
 +                  flex="1" contenttooltip="aHTMLTooltip"
 +                  tabcontainer="tabbrowser-tabs"
 +                  contentcontextmenu="contentAreaContextMenu"
-+                  autocompletepopup="PopupAutoComplete"/>
++                  autocompletepopup="PopupAutoComplete"
++                  selectpopup="ContentSelectDropdown"/>
 +      <chatbar id="pinnedchats" layer="true" mousethrough="always" hidden="true"/>
 +    </vbox>
 +    <splitter id="social-sidebar-splitter"
@@ -1167,12 +1164,12 @@ new file mode 100644
 diff --git a/browser/base/jar.mn b/browser/base/jar.mn
 --- a/browser/base/jar.mn
 +++ b/browser/base/jar.mn
-@@ -52,16 +52,18 @@ browser.jar:
-         content/browser/abouthealthreport/abouthealth.css     (content/abouthealthreport/abouthealth.css)
+@@ -53,16 +53,18 @@ browser.jar:
  #endif
          content/browser/aboutRobots-icon.png          (content/aboutRobots-icon.png)
          content/browser/aboutRobots-widget-left.png   (content/aboutRobots-widget-left.png)
          content/browser/aboutSocialError.xhtml        (content/aboutSocialError.xhtml)
+         content/browser/aboutTabCrashed.xhtml         (content/aboutTabCrashed.xhtml)
  *       content/browser/browser.css                   (content/browser.css)
  *       content/browser/browser.js                    (content/browser.js)
  *       content/browser/browser.xul                   (content/browser.xul)
@@ -1232,19 +1229,19 @@ diff --git a/browser/components/build/nsModule.cpp b/browser/components/build/ns
  #endif
  
  static const mozilla::Module::CIDEntry kBrowserCIDs[] = {
-     { &kNS_BROWSERDIRECTORYPROVIDER_CID, false, NULL, DirectoryProviderConstructor },
+     { &kNS_BROWSERDIRECTORYPROVIDER_CID, false, nullptr, DirectoryProviderConstructor },
  #if defined(XP_WIN)
-     { &kNS_SHELLSERVICE_CID, false, NULL, nsWindowsShellServiceConstructor },
+     { &kNS_SHELLSERVICE_CID, false, nullptr, nsWindowsShellServiceConstructor },
  #elif defined(MOZ_WIDGET_GTK)
--    { &kNS_SHELLSERVICE_CID, false, NULL, nsGNOMEShellServiceConstructor },
-+    { &kNS_SHELLSERVICE_CID, false, NULL, nsUnixShellServiceConstructor },
+-    { &kNS_SHELLSERVICE_CID, false, nullptr, nsGNOMEShellServiceConstructor },
++    { &kNS_SHELLSERVICE_CID, false, nullptr, nsUnixShellServiceConstructor },
  #endif
-     { &kNS_FEEDSNIFFER_CID, false, NULL, nsFeedSnifferConstructor },
-     { &kNS_BROWSER_ABOUT_REDIRECTOR_CID, false, NULL, AboutRedirector::Create },
+     { &kNS_FEEDSNIFFER_CID, false, nullptr, nsFeedSnifferConstructor },
+     { &kNS_BROWSER_ABOUT_REDIRECTOR_CID, false, nullptr, AboutRedirector::Create },
  #if defined(XP_WIN)
-     { &kNS_WINIEHISTORYENUMERATOR_CID, false, NULL, nsIEHistoryEnumeratorConstructor },
+     { &kNS_WINIEHISTORYENUMERATOR_CID, false, nullptr, nsIEHistoryEnumeratorConstructor },
  #elif defined(XP_MACOSX)
-     { &kNS_SHELLSERVICE_CID, false, NULL, nsMacShellServiceConstructor },
+     { &kNS_SHELLSERVICE_CID, false, nullptr, nsMacShellServiceConstructor },
  #endif
 diff --git a/browser/components/preferences/advanced.js b/browser/components/preferences/advanced.js
 --- a/browser/components/preferences/advanced.js
@@ -1301,7 +1298,7 @@ diff --git a/browser/components/preferences/advanced.js b/browser/components/pre
 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
-@@ -16,10 +16,12 @@ USE_STATIC_LIBS = 1
+@@ -9,10 +9,12 @@ USE_STATIC_LIBS = 1
  
  include $(topsrcdir)/config/rules.mk
  
@@ -1750,7 +1747,7 @@ new file mode 100644
 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
-@@ -606,19 +606,21 @@
+@@ -593,19 +593,21 @@
  @BINPATH@/defaults/autoconfig/prefcalls.js
  @BINPATH@/browser/defaults/profile/prefs.js
  
diff --git a/firefox.spec b/firefox.spec
index 5754a5a..d2329d6 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -7,7 +7,7 @@
 # This also means only STABLE upstream releases, NO betas.
 # This is a discussed topic. Please, do not flame it again.
 
-%define major 25.0.1
+%define major 26.0
 %define ff_epoch 0
 # (tpg) set version HERE !!!
 %define realver %{major}
@@ -55,8 +55,8 @@ Patch8:		firefox-25.0-disable-check-default-browser.patch
 Patch9:         firefox-5.0-asciidel.patch
 Patch10:	firefox-3.5.3-default-mail-handler.patch
 # Patches for kde integration of FF 
-Patch11:	firefox-25-kde.patch
-Patch12:	mozilla-25-kde.patch
+Patch11:	firefox-26-kde.patch
+Patch12:	mozilla-26-kde.patch
 Patch34:	xulrunner_nojit.patch
 
 # Upstream patches
diff --git a/mozilla-25-kde.patch b/mozilla-26-kde.patch
similarity index 97%
rename from mozilla-25-kde.patch
rename to mozilla-26-kde.patch
index e2eb942..07af3b8 100644
--- a/mozilla-25-kde.patch
+++ b/mozilla-26-kde.patch
@@ -7,7 +7,7 @@ Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=140751
 diff --git a/modules/libpref/src/Makefile.in b/modules/libpref/src/Makefile.in
 --- a/modules/libpref/src/Makefile.in
 +++ b/modules/libpref/src/Makefile.in
-@@ -49,14 +49,15 @@ endif
+@@ -35,14 +35,15 @@ endif
  # Optimizer bug with GCC 3.2.2 on OS/2
  ifeq ($(OS_ARCH), OS2)
  nsPrefService.$(OBJ_SUFFIX): nsPrefService.cpp
@@ -26,8 +26,7 @@ diff --git a/modules/libpref/src/Makefile.in b/modules/libpref/src/Makefile.in
 diff --git a/modules/libpref/src/Preferences.cpp b/modules/libpref/src/Preferences.cpp
 --- a/modules/libpref/src/Preferences.cpp
 +++ b/modules/libpref/src/Preferences.cpp
-@@ -24,16 +24,17 @@
- #include "nsIStringEnumerator.h"
+@@ -26,16 +26,17 @@
  #include "nsIZipReader.h"
  #include "nsPrefBranch.h"
  #include "nsXPIDLString.h"
@@ -35,6 +34,7 @@ diff --git a/modules/libpref/src/Preferences.cpp b/modules/libpref/src/Preferenc
  #include "nsCOMArray.h"
  #include "nsXPCOMCID.h"
  #include "nsAutoPtr.h"
+ #include "nsPrintfCString.h"
 +#include "nsKDEUtils.h"
  
  #include "nsQuickSort.h"
@@ -44,7 +44,7 @@ diff --git a/modules/libpref/src/Preferences.cpp b/modules/libpref/src/Preferenc
  #include "prefread.h"
  #include "prefapi_private_data.h"
  
-@@ -973,16 +974,34 @@ pref_LoadPrefsInDir(nsIFile* aDir, char 
+@@ -1098,16 +1099,34 @@ pref_LoadPrefsInDir(nsIFile* aDir, char 
  
  static nsresult pref_LoadPrefsInDirList(const char *listId)
  {
@@ -79,7 +79,7 @@ diff --git a/modules/libpref/src/Preferences.cpp b/modules/libpref/src/Preferenc
      return NS_OK;
  
    bool hasMore;
-@@ -998,17 +1017,17 @@ static nsresult pref_LoadPrefsInDirList(
+@@ -1123,17 +1142,17 @@ static nsresult pref_LoadPrefsInDirList(
  
      nsAutoCString leaf;
      path->GetNativeLeafName(leaf);
@@ -98,7 +98,7 @@ diff --git a/modules/libpref/src/Preferences.cpp b/modules/libpref/src/Preferenc
  {
    nsZipItemPtr<char> manifest(jarReader, name, true);
    NS_ENSURE_TRUE(manifest.Buffer(), NS_ERROR_NOT_AVAILABLE);
-@@ -1102,28 +1121,40 @@ static nsresult pref_InitInitialObjects(
+@@ -1227,28 +1246,40 @@ static nsresult pref_InitInitialObjects(
    /* these pref file names should not be used: we process them after all other application pref files for backwards compatibility */
    static const char* specialFiles[] = {
  #if defined(XP_MACOSX)
@@ -184,16 +184,11 @@ diff --git a/python/mozbuild/mozpack/chrome/manifest.py b/python/mozbuild/mozpac
 diff --git a/toolkit/components/downloads/Makefile.in b/toolkit/components/downloads/Makefile.in
 --- a/toolkit/components/downloads/Makefile.in
 +++ b/toolkit/components/downloads/Makefile.in
-@@ -11,13 +11,15 @@ VPATH = @srcdir@
- include $(DEPTH)/config/autoconf.mk
- 
- LIBRARY_NAME = download_s
- LIBXUL_LIBRARY = 1
- FAIL_ON_WARNINGS = 1
+@@ -4,9 +4,10 @@
+ # file, You can obtain one at http://mozilla.org/MPL/2.0/.
  
  include $(topsrcdir)/config/rules.mk
  
-+
  CXXFLAGS += $(TK_CFLAGS) -DGOOGLE_PROTOBUF_NO_RTTI
  
  LOCAL_INCLUDES += \
@@ -203,10 +198,10 @@ diff --git a/toolkit/components/downloads/Makefile.in b/toolkit/components/downl
 diff --git a/toolkit/components/downloads/nsDownloadManager.cpp b/toolkit/components/downloads/nsDownloadManager.cpp
 --- a/toolkit/components/downloads/nsDownloadManager.cpp
 +++ b/toolkit/components/downloads/nsDownloadManager.cpp
-@@ -38,16 +38,20 @@
- 
+@@ -41,16 +41,20 @@
  #ifdef XP_WIN
  #include <shlobj.h>
+ #include "nsWindowsHelpers.h"
  #ifdef DOWNLOAD_SCANNER
  #include "nsDownloadScanner.h"
  #endif
@@ -224,7 +219,7 @@ diff --git a/toolkit/components/downloads/nsDownloadManager.cpp b/toolkit/compon
  #include "AndroidBridge.h"
  #endif
  
-@@ -2609,16 +2613,25 @@ nsDownload::SetState(DownloadState aStat
+@@ -2686,16 +2690,25 @@ nsDownload::SetState(DownloadState aStat
        nsCOMPtr<nsIPrefBranch> pref(do_GetService(NS_PREFSERVICE_CONTRACTID));
  
        // Master pref to control this function.
@@ -250,7 +245,7 @@ diff --git a/toolkit/components/downloads/nsDownloadManager.cpp b/toolkit/compon
          int64_t goat = PR_Now() - mStartTime;
          showTaskbarAlert = goat > alertIntervalUSec;
  
-@@ -2645,19 +2658,20 @@ nsDownload::SetState(DownloadState aStat
+@@ -2722,19 +2735,20 @@ nsDownload::SetState(DownloadState aStat
                // retention policy, there's no reason to make the text clickable
                // because if it is, they'll click open the download manager and
                // the items they downloaded will have been removed.
@@ -265,7 +260,7 @@ diff --git a/toolkit/components/downloads/nsDownloadManager.cpp b/toolkit/compon
        }
 +      }
  
- #if defined(XP_WIN) || defined(XP_MACOSX) || defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GTK2)
+ #if defined(XP_WIN) || defined(XP_MACOSX) || defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GTK)
        nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(mTarget);
        nsCOMPtr<nsIFile> file;
        nsAutoString path;
@@ -275,7 +270,7 @@ diff --git a/toolkit/components/downloads/nsDownloadManager.cpp b/toolkit/compon
 diff --git a/toolkit/content/jar.mn b/toolkit/content/jar.mn
 --- a/toolkit/content/jar.mn
 +++ b/toolkit/content/jar.mn
-@@ -50,29 +50,33 @@ toolkit.jar:
+@@ -53,29 +53,33 @@ toolkit.jar:
     content/global/viewZoomOverlay.js          (viewZoomOverlay.js)
  *+ content/global/bindings/autocomplete.xml    (widgets/autocomplete.xml)
     content/global/bindings/browser.xml         (widgets/browser.xml)
@@ -769,7 +764,7 @@ diff --git a/toolkit/content/widgets/preferences-kde.xml b/toolkit/content/widge
 new file mode 100644
 --- /dev/null
 +++ b/toolkit/content/widgets/preferences-kde.xml
-@@ -0,0 +1,1339 @@
+@@ -0,0 +1,1332 @@
 +<?xml version="1.0"?>
 +
 +<!DOCTYPE bindings [
@@ -1355,14 +1350,15 @@ new file mode 100644
 +        <xul:button dlgtype="cancel" class="dialog-button" icon="cancel"/>
 +        <xul:button dlgtype="accept" class="dialog-button" icon="accept"/>
 +#elif XP_UNIX
-+                pack="end">
-+	<xul:button dlgtype="help" class="dialog-button" hidden="true" icon="help"/>
-+	<xul:button dlgtype="extra2" class="dialog-button" hidden="true"/>
-+	<xul:spacer anonid="spacer" flex="1"/>
-+	<xul:button dlgtype="accept" class="dialog-button" icon="accept"/>
-+	<xul:button dlgtype="extra1" class="dialog-button" hidden="true"/>
-+	<xul:button dlgtype="cancel" class="dialog-button" icon="cancel"/>
-+	<xul:button dlgtype="disclosure" class="dialog-button" hidden="true"/>
++	        pack="end">
++        <xul:button dlgtype="help" class="dialog-button" hidden="true" icon="help"/>
++        <xul:button dlgtype="extra2" class="dialog-button" hidden="true"/>
++        <xul:spacer anonid="spacer" flex="1"/>
++        <xul:button dlgtype="accept" class="dialog-button" icon="accept"/>
++        <xul:button dlgtype="extra1" class="dialog-button" hidden="true"/>
++        <xul:button dlgtype="cancel" class="dialog-button" icon="cancel"/>
++        <xul:button dlgtype="disclosure" class="dialog-button" hidden="true"/>
++	
 +#else
 +                pack="end">
 +        <xul:button dlgtype="extra2" class="dialog-button" hidden="true"/>
@@ -1511,7 +1507,7 @@ new file mode 100644
 +
 +          this._selector.selectedItem = document.getAnonymousElementByAttribute(this, "pane", aPaneElement.id);
 +          if (!aPaneElement.loaded) {
-+            function OverlayLoadObserver(aPane)
++            let OverlayLoadObserver = function(aPane)
 +            {
 +              this._pane = aPane;
 +            }
@@ -2073,7 +2069,8 @@ new file mode 100644
 +    </handlers>
 +  </binding>
 +          
-+  <binding id="panebutton" extends="chrome://global/content/bindings/radio.xml#radio">
++  <binding id="panebutton" role="xul:listitem"
++           extends="chrome://global/content/bindings/radio.xml#radio">
 +    <resources>
 +      <stylesheet src="chrome://global/skin/preferences.css"/>
 +    </resources>
@@ -2081,15 +2078,6 @@ new file mode 100644
 +      <xul:image class="paneButtonIcon" xbl:inherits="src"/>
 +      <xul:label class="paneButtonLabel" xbl:inherits="value=label"/>
 +    </content>
-+    <implementation implements="nsIAccessible">
-+      <property name="accessibleType" readonly="true">
-+        <getter>
-+          <![CDATA[
-+            return Components.interfaces.nsIAccessibleProvider.XULListitem;
-+          ]]>
-+        </getter>
-+      </property>
-+    </implementation>
 +  </binding>
 +
 +</bindings>
@@ -2129,9 +2117,9 @@ diff --git a/toolkit/system/unixproxy/nsUnixSystemProxySettings.cpp b/toolkit/sy
    NS_DECL_ISUPPORTS
    NS_DECL_NSISYSTEMPROXYSETTINGS
  
-   nsUnixSystemProxySettings() {}
-   nsresult Init();
-@@ -35,16 +37,17 @@ private:
+   nsUnixSystemProxySettings()
+     : mSchemeProxySettings(5)
+@@ -38,16 +40,17 @@ private:
    nsCOMPtr<nsIGSettingsService> mGSettings;
    nsCOMPtr<nsIGSettingsCollection> mProxySettings;
    nsInterfaceHashtable<nsCStringHashKey, nsIGSettingsCollection> mSchemeProxySettings;
@@ -2149,7 +2137,7 @@ diff --git a/toolkit/system/unixproxy/nsUnixSystemProxySettings.cpp b/toolkit/sy
  nsUnixSystemProxySettings::GetMainThreadOnly(bool *aMainThreadOnly)
  {
    // dbus prevents us from being threadsafe, but this routine should not block anyhow
-@@ -496,16 +499,19 @@ nsUnixSystemProxySettings::GetProxyFromG
+@@ -498,16 +501,19 @@ nsUnixSystemProxySettings::GetProxyFromG
  
  nsresult
  nsUnixSystemProxySettings::GetProxyForURI(const nsACString & aSpec,
@@ -2169,7 +2157,7 @@ diff --git a/toolkit/system/unixproxy/nsUnixSystemProxySettings.cpp b/toolkit/sy
    if (mGConf)
      return GetProxyFromGConf(aScheme, aHost, aPort, aResult);
  
-@@ -531,8 +537,34 @@ static const mozilla::Module::ContractID
+@@ -533,8 +539,34 @@ static const mozilla::Module::ContractID
  
  static const mozilla::Module kUnixProxyModule = {
    mozilla::Module::kVersion,
@@ -2207,7 +2195,7 @@ diff --git a/toolkit/system/unixproxy/nsUnixSystemProxySettings.cpp b/toolkit/sy
 diff --git a/toolkit/xre/moz.build b/toolkit/xre/moz.build
 --- a/toolkit/xre/moz.build
 +++ b/toolkit/xre/moz.build
-@@ -38,18 +38,20 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'qt
+@@ -44,18 +44,20 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'qt
          'nsNativeAppSupportQt.cpp',
          'nsQAppInstance.cpp',
      ]
@@ -2628,10 +2616,10 @@ new file mode 100644
 diff --git a/uriloader/exthandler/Makefile.in b/uriloader/exthandler/Makefile.in
 --- a/uriloader/exthandler/Makefile.in
 +++ b/uriloader/exthandler/Makefile.in
-@@ -77,9 +77,10 @@ endif
+@@ -45,9 +45,10 @@ ifdef MOZ_ENABLE_DBUS
+ LOCAL_INCLUDES   += $(TK_CFLAGS) $(MOZ_DBUS_CFLAGS)
  endif
  
- include $(topsrcdir)/config/config.mk
  include $(topsrcdir)/config/rules.mk
  include $(topsrcdir)/ipc/chromium/chromium-config.mk
  
@@ -2642,8 +2630,8 @@ diff --git a/uriloader/exthandler/Makefile.in b/uriloader/exthandler/Makefile.in
 diff --git a/uriloader/exthandler/moz.build b/uriloader/exthandler/moz.build
 --- a/uriloader/exthandler/moz.build
 +++ b/uriloader/exthandler/moz.build
-@@ -68,16 +68,18 @@ if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'coco
-     pass
+@@ -73,16 +73,18 @@ if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'coco
+     ]
  else:
      CPP_SOURCES += [
          'nsOSHelperAppService.cpp',
@@ -2878,7 +2866,7 @@ new file mode 100644
 diff --git a/uriloader/exthandler/unix/nsMIMEInfoUnix.cpp b/uriloader/exthandler/unix/nsMIMEInfoUnix.cpp
 --- a/uriloader/exthandler/unix/nsMIMEInfoUnix.cpp
 +++ b/uriloader/exthandler/unix/nsMIMEInfoUnix.cpp
-@@ -16,30 +16,33 @@
+@@ -10,30 +10,33 @@
  #include <QString>
  #if (MOZ_ENABLE_CONTENTACTION)
  #include <contentaction/contentaction.h>
@@ -2907,14 +2895,14 @@ diff --git a/uriloader/exthandler/unix/nsMIMEInfoUnix.cpp b/uriloader/exthandler
 -  nsresult rv = nsGNOMERegistry::LoadURL(aURI);
 +  nsresult rv = nsCommonRegistry::LoadURL(aURI);
  
- #if (MOZ_PLATFORM_MAEMO == 5) && defined (MOZ_ENABLE_GNOMEVFS)
-   if (NS_FAILED(rv)){
-     HildonURIAction *action = hildon_uri_get_default_action(mSchemeOrType.get(), nullptr);
-     if (action) {
-       nsAutoCString spec;
-       aURI->GetAsciiSpec(spec);
-       if (hildon_uri_open(spec.get(), action, nullptr))
-@@ -67,22 +70,22 @@ nsMIMEInfoUnix::GetHasDefaultHandler(boo
+ #ifdef MOZ_WIDGET_QT
+   if (NS_FAILED(rv)) {
+     nsAutoCString spec;
+     aURI->GetAsciiSpec(spec);
+     if (QDesktopServices::openUrl(QUrl(spec.get()))) {
+       rv = NS_OK;
+     }
+@@ -48,22 +51,22 @@ nsMIMEInfoUnix::GetHasDefaultHandler(boo
  {
    // if mDefaultApplication is set, it means the application has been set from
    // either /etc/mailcap or ${HOME}/.mailcap, in which case we don't want to
@@ -2939,7 +2927,7 @@ diff --git a/uriloader/exthandler/unix/nsMIMEInfoUnix.cpp b/uriloader/exthandler
    if (*_retval)
      return NS_OK;
  
-@@ -130,16 +133,33 @@ nsMIMEInfoUnix::LaunchDefaultWithFile(ns
+@@ -97,16 +100,33 @@ nsMIMEInfoUnix::LaunchDefaultWithFile(ns
      ContentAction::Action::defaultActionForFile(uri, QString(mSchemeOrType.get()));
    if (action.isValid()) {
      action.trigger();
@@ -2973,7 +2961,7 @@ diff --git a/uriloader/exthandler/unix/nsMIMEInfoUnix.cpp b/uriloader/exthandler
      nsCOMPtr<nsIIOService> ioservice = do_GetService(NS_IOSERVICE_CONTRACTID, &rv);
      NS_ENSURE_SUCCESS(rv, rv);
      nsCOMPtr<nsIURI> uri;
-@@ -157,17 +177,17 @@ nsMIMEInfoUnix::LaunchDefaultWithFile(ns
+@@ -124,17 +144,17 @@ nsMIMEInfoUnix::LaunchDefaultWithFile(ns
      /* Fallback to GnomeVFS */
      nsCOMPtr<nsIGnomeVFSMimeApp> app;
      if (NS_SUCCEEDED(gnomevfs->GetAppForMimeType(mSchemeOrType, getter_AddRefs(app))) && app)
@@ -3014,7 +3002,7 @@ diff --git a/uriloader/exthandler/unix/nsOSHelperAppService.cpp b/uriloader/exth
  #include "nsXPIDLString.h"
  #include "nsIURL.h"
  #include "nsIFileStreams.h"
-@@ -1157,29 +1157,29 @@ nsresult nsOSHelperAppService::OSProtoco
+@@ -1157,26 +1157,26 @@ nsresult nsOSHelperAppService::OSProtoco
      ContentAction::Action::defaultActionForScheme(QString(aProtocolScheme) + ':');
  
    if (action.isValid())
@@ -3025,9 +3013,6 @@ diff --git a/uriloader/exthandler/unix/nsOSHelperAppService.cpp b/uriloader/exth
    // Check the GConf registry for a protocol handler
 -  *aHandlerExists = nsGNOMERegistry::HandlerExists(aProtocolScheme);
 +  *aHandlerExists = nsCommonRegistry::HandlerExists(aProtocolScheme);
- #if (MOZ_PLATFORM_MAEMO == 5) && defined (MOZ_ENABLE_GNOMEVFS)
-   *aHandlerExists = nsMIMEInfoUnix::HandlerExists(aProtocolScheme);
- #endif
  #endif
  
    return NS_OK;
@@ -3046,7 +3031,7 @@ diff --git a/uriloader/exthandler/unix/nsOSHelperAppService.cpp b/uriloader/exth
  
  nsresult nsOSHelperAppService::GetFileTokenForPath(const PRUnichar * platformAppPath, nsIFile ** aFile)
  {
-@@ -1266,17 +1266,17 @@ nsOSHelperAppService::GetFromExtension(c
+@@ -1263,17 +1263,17 @@ nsOSHelperAppService::GetFromExtension(c
                                           mime_types_description,
                                           true);
  
@@ -3065,7 +3050,7 @@ diff --git a/uriloader/exthandler/unix/nsOSHelperAppService.cpp b/uriloader/exth
  
      rv = LookUpTypeAndDescription(NS_ConvertUTF8toUTF16(aFileExt),
                                    majorType,
-@@ -1389,17 +1389,17 @@ nsOSHelperAppService::GetFromType(const 
+@@ -1386,17 +1386,17 @@ nsOSHelperAppService::GetFromType(const 
  #ifdef MOZ_WIDGET_GTK
    nsRefPtr<nsMIMEInfoBase> gnomeInfo;
    if (handler.IsEmpty()) {
@@ -3087,7 +3072,7 @@ diff --git a/uriloader/exthandler/unix/nsOSHelperAppService.cpp b/uriloader/exth
 diff --git a/widget/gtk2/Makefile.in b/widget/gtk2/Makefile.in
 --- a/widget/gtk2/Makefile.in
 +++ b/widget/gtk2/Makefile.in
-@@ -68,11 +68,14 @@ DEFINES		+= -DCAIRO_GFX -DMOZ_APP_NAME='
+@@ -38,11 +38,14 @@ DEFINES		+= -DCAIRO_GFX -DMOZ_APP_NAME='
  
  INCLUDES	+= \
  		-I$(srcdir)/../xpwidgets \
@@ -3133,14 +3118,14 @@ diff --git a/widget/gtk2/nsFilePicker.cpp b/widget/gtk2/nsFilePicker.cpp
  #include "nsFilePicker.h"
 +#include "nsKDEUtils.h"
  
- #if (MOZ_PLATFORM_MAEMO == 5)
- #include <hildon-fm-2/hildon/hildon-file-chooser-dialog.h>
- #endif
- 
  using namespace mozilla;
  
  #define MAX_PREVIEW_SIZE 180
-@@ -232,17 +234,19 @@ nsFilePicker::AppendFilters(int32_t aFil
+ 
+ nsIFile *nsFilePicker::mPrevDisplayDirectory = nullptr;
+ 
+ void
+@@ -225,17 +227,19 @@ nsFilePicker::AppendFilters(int32_t aFil
    return nsBaseFilePicker::AppendFilters(aFilterMask);
  }
  
@@ -3161,7 +3146,7 @@ diff --git a/widget/gtk2/nsFilePicker.cpp b/widget/gtk2/nsFilePicker.cpp
  
    mFilters.AppendElement(filter);
    mFilterNames.AppendElement(name);
-@@ -356,16 +360,32 @@ nsFilePicker::Show(int16_t *aReturn)
+@@ -349,16 +353,32 @@ nsFilePicker::Show(int16_t *aReturn)
  
  NS_IMETHODIMP
  nsFilePicker::Open(nsIFilePickerShownCallback *aCallback)
@@ -3194,7 +3179,7 @@ diff --git a/widget/gtk2/nsFilePicker.cpp b/widget/gtk2/nsFilePicker.cpp
  
    GtkFileChooserAction action = GetGtkFileChooserAction(mMode);
    const gchar *accept_button = (action == GTK_FILE_CHOOSER_ACTION_SAVE)
-@@ -553,8 +573,235 @@ nsFilePicker::Done(GtkWidget* file_choos
+@@ -537,8 +557,235 @@ nsFilePicker::Done(GtkWidget* file_choos
    if (mCallback) {
      mCallback->Done(result);
      mCallback = nullptr;
@@ -3433,7 +3418,7 @@ diff --git a/widget/gtk2/nsFilePicker.cpp b/widget/gtk2/nsFilePicker.cpp
 diff --git a/widget/gtk2/nsFilePicker.h b/widget/gtk2/nsFilePicker.h
 --- a/widget/gtk2/nsFilePicker.h
 +++ b/widget/gtk2/nsFilePicker.h
-@@ -67,11 +67,17 @@ protected:
+@@ -66,11 +66,17 @@ protected:
    nsString  mDefault;
    nsString  mDefaultExtension;
  
@@ -3454,7 +3439,7 @@ diff --git a/widget/gtk2/nsFilePicker.h b/widget/gtk2/nsFilePicker.h
 diff --git a/xpcom/components/Makefile.in b/xpcom/components/Makefile.in
 --- a/xpcom/components/Makefile.in
 +++ b/xpcom/components/Makefile.in
-@@ -23,9 +23,10 @@ LOCAL_INCLUDES	= \
+@@ -14,9 +14,10 @@ LOCAL_INCLUDES	= \
  	-I$(topsrcdir)/chrome/src \
  	-I$(topsrcdir)/modules/libjar \
  	$(NULL)
@@ -3599,7 +3584,7 @@ diff --git a/xpcom/components/ManifestParser.cpp b/xpcom/components/ManifestPars
 diff --git a/xpcom/io/Makefile.in b/xpcom/io/Makefile.in
 --- a/xpcom/io/Makefile.in
 +++ b/xpcom/io/Makefile.in
-@@ -26,17 +26,17 @@ include $(topsrcdir)/config/rules.mk
+@@ -7,9 +7,9 @@ include $(topsrcdir)/config/rules.mk
  include $(topsrcdir)/ipc/chromium/chromium-config.mk
  
  ifeq ($(OS_ARCH),Linux)
@@ -3610,18 +3595,10 @@ diff --git a/xpcom/io/Makefile.in b/xpcom/io/Makefile.in
  
 -LOCAL_INCLUDES	+= -I..
 +LOCAL_INCLUDES	+= -I.. -I$(topsrcdir)/toolkit/xre
- 
- ifeq ($(MOZ_PLATFORM_MAEMO),5)
- CFLAGS          += $(MOZ_DBUS_CFLAGS)
- CXXFLAGS        += $(MOZ_DBUS_CFLAGS)
- endif
- 
- ifdef MOZ_PLATFORM_MAEMO
- CFLAGS          += $(MOZ_PLATFORM_MAEMO_CFLAGS) $(MOZ_QT_CFLAGS)
 diff --git a/xpcom/io/nsLocalFileUnix.cpp b/xpcom/io/nsLocalFileUnix.cpp
 --- a/xpcom/io/nsLocalFileUnix.cpp
 +++ b/xpcom/io/nsLocalFileUnix.cpp
-@@ -50,16 +50,17 @@
+@@ -42,16 +42,17 @@
  #include "prproces.h"
  #include "nsIDirectoryEnumerator.h"
  #include "nsISimpleEnumerator.h"
@@ -3639,7 +3616,7 @@ diff --git a/xpcom/io/nsLocalFileUnix.cpp b/xpcom/io/nsLocalFileUnix.cpp
  #include "prmem.h"
  #include "plbase64.h"
  
-@@ -1753,44 +1754,51 @@ nsLocalFile::SetPersistentDescriptor(con
+@@ -1727,44 +1728,51 @@ nsLocalFile::SetPersistentDescriptor(con
      return InitWithNativePath(aPersistentDescriptor);
  #endif
  }
@@ -3705,15 +3682,15 @@ diff --git a/xpcom/io/nsLocalFileUnix.cpp b/xpcom/io/nsLocalFileUnix.cpp
        return rv;
      }
      return NS_ERROR_FAILURE;
-@@ -1816,16 +1824,23 @@ nsLocalFile::Launch()
+@@ -1772,16 +1780,23 @@ nsLocalFile::Reveal()
+     return NS_ERROR_FAILURE;
+ #endif
+ }
  
-     if (nullptr == connection)
-       return NS_ERROR_FAILURE;
- 
-     if (hildon_mime_open_file(connection, mPath.get()) != kHILDON_SUCCESS)
-       return NS_ERROR_FAILURE;
-     return NS_OK;
- #else
+ NS_IMETHODIMP
+ nsLocalFile::Launch()
+ {
+ #ifdef MOZ_WIDGET_GTK
 +    if( nsKDEUtils::kdeSupport()) {
 +      nsTArray<nsCString> command;
 +      command.AppendElement( NS_LITERAL_CSTRING("OPEN") );