An anonymous reader sends word that the first Firefox 7.0 beta has been released. One of the big areas of focus for this version will be performance enhancements. One optimization "Reduces memory use and improves performance areas including responsiveness, startup and page load time, even in complex websites and Web apps." Another addresses one of Firefox users' long-standing gripes: "The JavaScript garbage collector works more frequently to free up memory and improve performance when you have many tabs open or keep Firefox running for a long time."http://news.slashdot.org/story/11/08/19/1652201/Firefox-70-Beta-Released