3 files changed, 9 insertions, 11 deletions
diff --git a/toolkit/mozapps/extensions/AddonManager.jsm b/toolkit/mozapps/extensions/AddonManager.jsm
index a48e0034f..f69daa0eb 100644
--- a/toolkit/mozapps/extensions/AddonManager.jsm
+++ b/toolkit/mozapps/extensions/AddonManager.jsm
@@ -30,7 +30,6 @@ const PREF_EM_LAST_PLATFORM_VERSION   = "extensions.lastPlatformVersion";
 const PREF_EM_AUTOUPDATE_DEFAULT      = "extensions.update.autoUpdateDefault";
 const PREF_EM_STRICT_COMPATIBILITY    = "extensions.strictCompatibility";
 const PREF_EM_CHECK_UPDATE_SECURITY   = "extensions.checkUpdateSecurity";
-const PREF_EM_UPDATE_BACKGROUND_URL   = "extensions.update.background.url";
 const PREF_APP_UPDATE_ENABLED         = "app.update.enabled";
 const PREF_APP_UPDATE_AUTO            = "app.update.auto";
 const PREF_MATCH_OS_LOCALE            = "intl.locale.matchOS";
diff --git a/toolkit/mozapps/extensions/internal/XPIProvider.jsm b/toolkit/mozapps/extensions/internal/XPIProvider.jsm
index d12e1de59..f7d53812a 100644
--- a/toolkit/mozapps/extensions/internal/XPIProvider.jsm
+++ b/toolkit/mozapps/extensions/internal/XPIProvider.jsm
@@ -74,7 +74,6 @@ const PREF_DSS_SWITCHPENDING          = "extensions.dss.switchPending";
 const PREF_DSS_SKIN_TO_SELECT         = "extensions.lastSelectedSkin";
 const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
 const PREF_EM_UPDATE_URL              = "extensions.update.url";
-const PREF_EM_UPDATE_BACKGROUND_URL   = "extensions.update.background.url";
 const PREF_EM_ENABLED_ADDONS          = "extensions.enabledAddons";
 const PREF_EM_EXTENSION_FORMAT        = "extensions.";
 const PREF_EM_ENABLED_SCOPES          = "extensions.enabledScopes";
@@ -6179,12 +6178,7 @@ function UpdateChecker(aAddon, aListener, aReason, aAppVersion, aPlatformVersion
 
   let updateURL = aAddon.updateURL;
   if (!updateURL) {
-    if (aReason == AddonManager.UPDATE_WHEN_PERIODIC_UPDATE &&
-        Services.prefs.getPrefType(PREF_EM_UPDATE_BACKGROUND_URL) == Services.prefs.PREF_STRING) {
-      updateURL = Services.prefs.getCharPref(PREF_EM_UPDATE_BACKGROUND_URL);
-    } else {
-      updateURL = Services.prefs.getCharPref(PREF_EM_UPDATE_URL);
-    }
+    updateURL = Services.prefs.getCharPref(PREF_EM_UPDATE_URL);
   }
 
   const UPDATE_TYPE_COMPATIBILITY = 32;
@@ -6477,8 +6471,12 @@ AddonInternal.prototype = {
         return false;
 #endif
     }
-    else if (app.id == TOOLKIT_ID)
-      version = aPlatformVersion
+    else if (app.id == TOOLKIT_ID) {
+#ifdef MOZ_PHOENIX_EXTENSIONS
+      this.native = true;
+#endif
+      version = aPlatformVersion;
+    }
 
     // Only extensions and dictionaries can be compatible by default; themes
     // and language packs always use strict compatibility checking.
diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
index 55072c474..a2f7b89b2 100644
--- a/toolkit/xre/nsAppRunner.cpp
+++ b/toolkit/xre/nsAppRunner.cpp
@@ -2615,6 +2615,7 @@ NS_VISIBILITY_DEFAULT PRBool nspr_use_zone_allocator = PR_FALSE;
 #ifdef CAIRO_HAS_DWRITE_FONT
 
 #include <dwrite.h>
+#include "nsWindowsHelpers.h"
 
 #ifdef DEBUG_DWRITE_STARTUP
 
@@ -2643,7 +2644,7 @@ static DWORD WINAPI InitDwriteBG(LPVOID lpdwThreadParam)
 {
   SetThreadPriority(GetCurrentThread(), THREAD_MODE_BACKGROUND_BEGIN);
   LOGREGISTRY(L"loading dwrite.dll");
-  HMODULE dwdll = LoadLibraryW(L"dwrite.dll");
+  HMODULE dwdll = LoadLibrarySystem32(L"dwrite.dll");
   if (dwdll) {
     decltype(DWriteCreateFactory)* createDWriteFactory = (decltype(DWriteCreateFactory)*)
       GetProcAddress(dwdll, "DWriteCreateFactory");