Firefox is known to have it's weaknesses, but i really think everyone should have it. Firefox is smoother, faster and better than ever. You can have cool things like ForcastFox, which tells you the weather anywhere in the world, you can get cool skins, ftp clients, spell checkers, everything! Trust me Firefox is the best and most valuable tool i have ever used, even my company use it. And, from what i've seen, so do Jagex.