I recently changed from Dows to Ubuntu and I liked using IE as well as F.F. to dual browser game. Well, since Ubuntu doesn't really have a native browser I used Epiphany but it can be slow and buggy on browser games like Mafia Wars (I can't click some of the buttons or it just freezes up).
So, what browser do you use or recommend as a back-up. I am already using Firefox, but what's the OTHER best browser for playing flash-based games like Mafia Wars on Facebook?