Bug 827254 - Guard against garbage plugin instance in ANPSystem::setPowerState r=blassey
Bug 846330 - Bail out before trying to eval scripts containing 'arguments' in Ion, r=jandem.
Backed out changeset cacb9f3ee44d (bug 840693)
Backed out changeset c1f4eff03e82 (bug 840693) for causing bug 838563
Bug 846080 - Make DecompileArgumentFromStack a bit more robust. r=bhackett