engine - 4:00 pm on Aug 12, 2013 (gmt 0)
The beta is released, for those that like to test, and those don't mind if their browser crashes.
Three new options include, Support for new scrollbar style in Mac OS X 10.7 and newer, close tabs to the right, and on the social side, the ability to tear-off chat windows to view separately by simply dragging them out.
For developers, the browser console is improved for better debugging.
Firefox 24 (Beta) [mozilla.org...]
Release notes [mozilla.org...]