Add pref from http://hg.mozilla.org/mozilla-central/rev/7dd4065311eb
Add pref from http://hg.mozilla.org/mozilla-central/rev/7dd4065311eb

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