Firefox 4.0 Beta 6 0 - The beta version of Firefox 4 is already available for download. And as software junkies, we couldn’t help taking a sneak peek. A revamped interface design, support for HTML5 and CSS3, a new add-on manager and some other new features is what you’ll find in the new Firefox 4 Beta.

The Add-on manager in Firefox 4 has also been improved. Now it opens in a full new tab –instead of a tiny window – which makes plug-in handling a lot easier. The Download manager though stays exactly the same.