Good choice, Greg. I've been using Firefox for a couple years now, and I have had no problems with it. The good folks at Mozilla seem to have figured out how to stop pop-ups dead in their tracks 'cause I almost never get any while using Firefox. Once in a while a web page won't load properly so I use I.E. to view it...and whad'ya know...I get pop-ups. (and pop-unders too)
I guess the Micro$oft guys are too busy fixing security flaws to spend the time to build a good web browser.