In other words, if you don't absolutely need incompatible extensions, there's a lot to be said for upgrading today.
Firefox has also improved its help system. It now reaches out to the Firefox support Web site for help information. Everyone has the experience of searching for help, only to find that the on-PC help is hopelessly outdated. With Firefox 3, you can always get to the most current information.
Nothing is perfect in this world. Still, when it comes to Web browsers, Firefox 3 is as good as they come. Certainly, compared with the forthcoming Internet Explorer 8 and the security problem-prone Safari, Firefox 3 is the standout browser for 2008.
Since Firefox first appeared on the scene in 2004, it has set the standard for Web browsers. Not only did it break Microsoft's iron grasp on Web browsing, its very existence forced Microsoft and the other browser companies to up their game. All of the Web browsers are far better than they were before Firefox came along.
Now Mozilla's open-source developers have set the bar even higher. Firefox 3 is the best of the breed.