diff -up firefox-34.0/mozilla-release/accessible/atk/Platform.cpp.old firefox-34.0/mozilla-release/accessible/atk/Platform.cpp
--- firefox-34.0/mozilla-release/accessible/atk/Platform.cpp.old	2014-11-26 03:17:05.000000000 +0100
+++ firefox-34.0/mozilla-release/accessible/atk/Platform.cpp	2014-12-13 17:40:29.414539391 +0100
@@ -276,6 +276,9 @@ dbus_done:
 bool
 a11y::ShouldA11yBeEnabled()
 {
+  // Temporary disable for Gtk3
+  return false;
+
   static bool sChecked = false, sShouldEnable = false;
   if (sChecked)
     return sShouldEnable;
diff -up firefox-34.0/mozilla-release/media/webrtc/trunk/Makefile.old firefox-34.0/mozilla-release/media/webrtc/trunk/Makefile