It is expected that Mozilla will be releasing Beta 1 for Firefox 3.6. We believe that Firefox 3.6 Beta 1 will not be bringing major improvements rather it will be bringing minor tweaks. 13th October is the possible date for releasing Beta of Firefox 3.6. I wouldn't be surprised if Mozilla delays the release as it has done a similar practice in the past as well. To find out what exactly it will bring, you might want to visit the link provided below: