The upcoming Firefox 4, to be released in Oct 2010, took a few cue from Chrome and Opera. The interface has been simplified and greatly influenced by Chrome and Opera. Once again, Google is leading in web technologies
Something UI designers have known for a long time is that the simpler an interface looks, the faster it will seem. The less the user has to take in with their eye, the quicker they can process it and the quicker the entire application will seem. So we’re actually looking at making our interface faster by changing the way it looks.
~ Mike Beltzner, Firefox Director
Take a look and compare:
Firefox 4
Chrome
Opera