Add prefs from http://hg.mozilla.org/mozilla-central/rev/ed82d3fb789c
Add prefs from http://hg.mozilla.org/mozilla-central/rev/ed82d3fb789c

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