Two days after Mozilla delivered Firefox 6 to its wide-release stable channel, Firefox 7 and its much-anticipated spate of better memory management and reduced load times got promoted from the developer's Aurora build to the Beta channel. You can download Firefox 7 Beta for Windows, Mac, Linux, and Android.
Many of the same changes made in the desktop version have been made to the Firefox Beta for Android. These include the optimized memory use, restoring session history and tabs, changes to Firefox Sync, copy and paste from mobile Web sites, and enhanced language detection for localization.
For people who don't like some of Firefox's recent changes to the address bar, I just discovered that there are two new entries in the about:config menu. In Firefox 7 and above, you can force the page's protocol to always be displayed by changing browser.urlbar.trimURLs to False. In Firefox 6 and above, you can disable domain name highlighting by changing browser.urlbar.formatting.enabled to False, too.
If Mozilla sticks to the current release schedule, Firefox 7 will reach the stable channel and thus the majority of Firefox users on September 27.