Firefox 4 Beta 12 Released; Fixes Over 650 Bugs

"At last! Firefox 4 Beta 12 is now available. There are over 650 bug fixes in this massive update including a fix for a memory leak that kept Firefox consuming RAM even without opening new tabs. The other big thing that many users have asked for is that FINALLY, when you hover over a link, the URL is displayed in the status bar, instead of the location bar."