Stephen Horlander, of Firefox fame, has updated his blog with new concept art of the upcoming redesign of Firefox 4.0's theme. Sporting a look that should win over the hards of Windows Vista and Windows 7 users, one can only hope it will appear sooner than later.

Especially since the Firefox 3.x look is simply ugly on Windows. For Linux and Mac users Firefox looks quite ok, but for Windows it looks like nothing, it does not integrate well with Aero (unless you use add-ons) or any other modern Windows platform features (actually Vista introduced Aero back in 2006).

However there is also some sad news. According to Stephen Horlander all focus has been set on Firefox 4.0's theme, leaving Firefox 3.7, which would contain an evolutionary redesign, in the cold. Yep, that means that Firefox users will have to endure the ugly default theme for a year or so at the very least.

The new look is surprisingly nice though. Stephen shows us that he's considering several options, such as instead of the "Page" and "Tools" button like Chrome and Safari to introduce an application button in the top left, similar to Paint and WordPad in Windows 7. The personal toolbar is also considered to be either part of the current tab or under the uniform location bar.

Seems like there won't be a vote on it yet, but the concept art does give a good indication. While Firefox 4.0 is not slated to have a final release in 2010, it sure is needed as soon as possible. With the continuation of the competition, even on the UI front, by Google Chrome and Opera, Mozilla is in no way capable of standing still.