As expected, Mozilla has pulled the curtain on the final release of Firefox 3.0. If you're able to get the site to load, you can download the new browser directly from mozilla.com. Users of previous versions may be able to upgrade by selecting "Check for updates..." in Firefox's "Help" menu, as well.
Users switching from Firefox 2 will find a boatload of new features in this release. Mozilla claims Firefox 3 is "two to three times faster" than the previous versions, and it has almost completely revamped the user interface to better fit in with Windows Vista, Windows XP, and Mac OS X. The new browser also includes a database-style bookmark and history manager, a one-click bookmarking system with tags, a new address bar that understands site names, prominent new anti-phishing measures, full-page zooming, a new add-ons manager that also takes care of plugins, a new download manager, and more.
If you're not convinced, Mozilla has put together a video tour of Firefox 3, and you can learn more by checking out the official release notes. The browser itself is available in 45 languages for Windows, Mac OS X, and Linux directly from this page.