Mozilla have been churning out betas for Firefox 4 like anything. I’ve been following the progress of the betas closely and there has been a lot of progress through out the development life cycle for Firefox 4 so far although it’s still not Google Chrome like fast yet. 
Firefox 4 contains a new cleaner and slicker UI, improved location bar, faster JS engine, hardware accelerated graphics, new audio API and so on. If you want to give it a shot or you’re an avid Firefox user, this is one release you should jump to already. You can find out more here.
Go ahead and download Firefox 4 RC from the following links:
Download Firefox Release Candidate for Mac OS X
Download Firefox Release Candidate for Windows
Download Firefox Release Candidate for Linux
We will update this post as soon as the release notes are out.
Thanks to Robert for the tip!
