Barely two months from its last version, Firefox rolled out its Firefox 6 which outdated Firefox 5 that was just released on June 15th. I’ve downloaded it just a couple of minutes ago and installed it without hitches upgrading my Firefox 4. Firefox 4 was released about 5 months ago or in March 2011. That’s how fast Mozilla has upgraded its browser.
You can download Firefox 6 from here: http://www.mozilla.com/en-US/firefox/features/#