Barence writes "Mozilla has given a breakdown of its plans for Firefox 4. Perhaps the most striking change to Firefox 4 is the user interface, which takes a great deal of inspiration from Google Chrome. 'Something UI designers have known for a long time is that the simpler an interface looks, the faster it will seem,' said director of Firefox Mike Beltzner during the presentation. Also mooted was the ability to give applications such as Gmail and Twitter their own permanent tabs for easy access, and the introduction of a 'switch to tab' button, allowing power users running hundreds of tabs to quickly find the one they want. Beltzner said Mozilla was also looking at replicating Chrome's tactic of silently updating the browser in the background, removing the annoying wait when Firefox first loads up."