Firefox or Internet Explorer?

Well, I personally preferred to use Firefox because it's simpler & loads faster. Also, it's not that vulnerable to hacks....which unfortunately, Internet Explorer is usually exposed too. Remember the stories where people using Internet Explorer had their browsers hacked? I was one of them. :(

If you wish to give Firefox a try, you can download it by clicking the banner on the left sidebar.

Best of both worlds
No worries, if you are undecided, you can still have IE and Firefox on one operating system. Firefox will also prompt you about importing your favorite bookmarks, etc.