Firefox has the worst UI amongst all the popular browsers. Almost all other browsers ( IE, Chrome, Safari ) have a new and better UI along with some sort of Windows 7 integration ( Aero Glass, jumplists, Aero Peek, thumbnail previews etc ), where as Firefox has none. The UI is still stuck in the Windows XP era. Mozilla has plans to change all that with Firefox 3.7 release.
Permalink: Firefox 3.7 to get the Office Ribbon UI
