Mozilla Firefox 8.0 -November 8, 2011What's New: *Add-ons installed by third party programs are now disabled by default
*Added a one-time add-on selection dialog to manage previously installed add-ons
*Added Twitter to the search bar for select locales. Additional locale support will be added in the future
*Added a preference to load tabs on demand, improving start-up time when windows are restored
*Improved performance and memory handling when using <audio> and <video> elements
*Added CORS support for cross-domain textures in WebGL
*Added support for HTML5 context menus
*Added support for insertAdjacentHTML
*Improved CSS hyphen support for many languages
*Improved WebSocket support
*Fixed several stability issues
*Fixed several security issues
More links, Download and information here
http://www.mozilla.org/en-US/firefox/8.0/releasenotes/Note: Existing users can update via "Help" >>> "About Firefox">>>"check for updates".