i've used both firefox and opera, and i just cannot see why everywhere i look, people say how firefox is way better than opera... i find that opera is much better looking, faster, and has more features, while firefox looks plain and has a few but not nearly as many features as opera.. i do give firefox credit for being totally free, but with opera i can easily deal with having the skinny ad bar at the top. if anyone has used both i'd like their points of view, because to me, opera is much better.