The Pre-Beta version of the all mighty browser from Mozilla is now available for download for Linux, Mac and Windows. One of the newest thing is the "tabs on the top" at the pure chrome style. Like Alex Faaborg from Mozilla in a video interview: The top tabs work better and this will be the default option.
The update's still rough around the edges, and as a pre-beta, it's a very early-adopter download only. But if you're eager to play with the bleeding edge of Firefox, you can download the release (Mozilla appropriately names their nightlies "Minefield") here. (Look for the appropriate download for your platform with a name like