Firefox 25 will get a major UI overhaul
Here are some very detailed mockups(?) on major platforms whose links are kind of tucked into the parent link:<p>Linux: <a href="http://people.mozilla.com/~shorlander/files/australis-designSpecs/australis-designSpecs-linux-mainWindow.html" rel="nofollow">http://people.mozilla.com/~shorlander/files/australis-design...</a><p>Windows 7: <a href="http://people.mozilla.com/~shorlander/files/australis-designSpecs/australis-designSpecs-windows7-mainWindow.html" rel="nofollow">http://people.mozilla.com/~shorlander/files/australis-design...</a><p>Windows XP: <a href="http://people.mozilla.com/~shorlander/files/australis-designSpecs/australis-designSpecs-windowsXP-lunaBlue-mainWindow.html" rel="nofollow">http://people.mozilla.com/~shorlander/files/australis-design...</a><p>OSX: <a href="http://people.mozilla.com/~shorlander/files/australis-designSpecs/australis-designSpecs-osx-mainWindow.html" rel="nofollow">http://people.mozilla.com/~shorlander/files/australis-design...</a><p>I personally think it looks nice and welcome the update. I haven't really been using Firefox all that much mainly due to how busy the interface is, so maybe leaning it out will make me a regular user again.