新版Firefox的最大改进是对内存的使用进行了大幅度的修改，提升了性能并增加了稳定性，以下是更新列表和下载地址：
下载:Mozilla Firefox 7.0 正式版- Drastically improved memory use
- 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
- Added support for text-overflow: ellipsis
- Added support for the Web Timing specification
- Added an opt-in system for users to send performance data back to Mozilla to improve future versions of Firefox. This can be enabled by installing an add-on
- Fixed several stability issues