"Firefox 3.5 is coming very soon, and this release includes a
number of features that up the ante for Web browsers and the Web as
an application platform. Some of the game-changing features in
Firefox 3.5 won't be immediately visible to end-users, but they'll
allow Web developers to build Web applications that make the Web
even more fun and useful than it already is. Let's take a look at
five of the prominent features you can test drive today in Firefox
3.5.
"You can grab tarballs from Mozilla the Mozilla beta
announcement page, though many Linux distros also have testing
packages available as add-on repositories. For instance, openSUSE
users can add the mozilla:beta repository to track the latest
Firefox development packages. This gives the added advantage of
allowing you to track updates via your distro's update process, but
does mean that updates will usually lag a few days behind the
official Moz builds."