I was a FF guy, but like others have said, it got too slow and crashed quite a bit. So I went to Chrome which I loved for a long time, but then one of the updates makes it so it crashes any time I open a half dozen or so tabs. I tried deleting it and reinstalling it, but it didn't help at all. So I was forced to Safari. While I miss some features of FF/Chrome, I've figured out how to make it work and it does fine. I use an iPhone and iPad so iCloud iTab iSync iIs iPretty iCool.