Add pref from http://hg.mozilla.org/mozilla-central/rev/a41f9fff4cd1
Add pref from http://hg.mozilla.org/mozilla-central/rev/a41f9fff4cd1

nth10sd/funfuzz,nth10sd/funfuzz,MozillaSecurity/funfuzz,MozillaSecurity/funfuzz,nth10sd/funfuzz,MozillaSecurity/funfuzz