diff -r 38c67b6b2f37 -r fa96cf6ffd14 MozillaFirefox/gecko.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MozillaFirefox/gecko.js	Tue Jul 16 12:35:11 2013 +0200
@@ -0,0 +1,1 @@
+pref("media.gstreamer.enabled", true);