Add pref layout.float-fragments-inside-column.enabled from http://hg.mozilla.org/mozilla-central/rev/3c8aa35169bf (we want to know if things are going to break in release builds)
Add pref layout.float-fragments-inside-column.enabled from http://hg.mozilla.org/mozilla-central/rev/3c8aa35169bf (we want to know if things are going to break in release builds)

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