Firefox 7.0

- Drastically improved memory handling for certain use cases
- Added a new rendering backend to speed up Canvas operations on Windows systems
- Bookmark and password changes now sync almost instantly when using Firefox Sync
- The 'http://' URL prefix is now hidden by default
- Added support for text-overflow: ellipsis
- Added support for the Web Timing specification
- Enhanced support for MathML
- The WebSocket protocol has been updated from version 7 to version 8
- Added an opt-in system for users to send performance data back to Mozilla to improve future versions of Firefox
- Fixed several stability issues
- Fixed several security issues