I just started using FireFox myself, and I have to say that it's pretty nice. Takes some time to get used to if you've been using IE all your life, but it's growing on me. The only complaint I have at the moment is that when I click a link that opens in a new window, it opens a whole new window instead of just a tab. That was one of the main features I liked the most about FireFox! (If anyone can help me out with that, I'd really appreciate it.) But yeah, it has a lot of cool additions, too. It comes automatically with a Google search bar, and I added a weather bar last night. It's pretty nice. I think what it comes down to is a matter of preference. Use what you want!