I generally use the latest version of IE, for several reasons, and switch to Firefox if I run into a webpage that's giving me trouble. The reality is that IE is usually the easiest to use (assuming that you're running Windows), plus I'm used to it. Also, several of our applications at work are written for IE and don't work as well with any other browser. I've encountered some sites specifically written to fail with IE, which I think is counter-productive, to put it kindly. I don't hesitate to recommend Firefox to anyone, especially for Mac users, and haven't ever had serious problems with it, but there are some sites and individual pages which it chokes on - no browser yet works with everything that's out there. Safari sucks, pure and simple. I've yet to find anything that it does well. Haven't tried Chrome, but it sounds promising - I'll probably wait a little while longer though. I'm aware of a few of the other browsers, but haven't been interested enough to try any of them.