If you're using Firefox 2, the obvious benefit of downloading the latest version is its improved rendering speed, the clever new data mining tools for bookmarks and browser history, and the many security-related features built right into it. Memory usage is thrifty, and it doesn't seem to freeze as often as the last version. The so-called 'Awesome Bar' will delight some and annoy the heck out of others (us included), and there's no easy way to turn it off. Instead, you have to go into about:config to disable it. How silly is that? Firefox 3.0 is a great browser and a huge improvement over previous versions. But Internet Explorer, Opera, and Safari are also good browsers - all having their adherents. So, whether you should use Firefox 3.0 is largely a personal choice. It is free after all, so you've got nothing to lose. If you are still running an earlier version, now's the time to upgrade to Firefox 3, or in case you've never used Firefox before, now's the time to do so.