Changes in source:
* 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

Changes in Firefox 10.0.2
* MFSA 2012-11 libpng integer overflow (Critical: Vulnerability can be used to run attacker code and install software, requiring no user interaction beyond normal browsing.)