adds firefox repo to use latest firefox
adds firefox repo to use latest firefox

pculture/unisubs,pculture/unisubs,wevoice/wesub,norayr/unisubs,ReachingOut/unisubs,eloquence/unisubs,wevoice/wesub,ofer43211/unisubs,wevoice/wesub,ReachingOut/unisubs,ReachingOut/unisubs,ofer43211/unisubs,pculture/unisubs,ofer43211/unisubs,eloquence/unisubs,wevoice/wesub,ReachingOut/unisubs,ofer43211/unisubs,eloquence/unisubs,eloquence/unisubs,norayr/unisubs,pculture/unisubs,norayr/unisubs,norayr/unisubs