After the official release of Firefox 8, Mozilla is in the race for fastest releases cycle by releasing the official Firefox 9 beta version.
Mozilla is trying hard to improve the browser, where Chrome is growing very faster. With installing of Firefox 9 beta on my Windows, I hardly saw any cosmetic difference compared to previous stable version i.e. Firefox 8.
User can download the Firefox 9 beta version from the below link. As the version is beta, User can experience some crashes and can be high possibility of bugs.