Do yourself a favor and download Firefox 4 or Chrome 10 today. Both browsers are major improvements over previous versions. (I can't speak to Internet Explorer 9 since it doesn't work with Windows XP.)
I can't tell you how much better Firefox 4 is than version 3. The reason that I began using Google's Chrome browser was that Firefox got so sluggish. It seemed to take longer and longer just to load. However, Firefox is back with speed and features that make it again my browser of choice.