Firefox 3.1 Beta 2

Firefox 3.1 Beta 2 is based on the Gecko 1.9.1 rendering platform, which has been under development for the past 7 months. Gecko 1.9.1 is an incremental release on the previous version with significant changes to improve web compatibility, performance, and ease of use:

* This beta is now available in 54 languages - get your local version.
* Added a new Private Browsing Mode.
* Added functions to make it easy to clear recent history by time as well as remove all traces of a website.
* New support for web worker threads.
* The new TraceMonkey JavaScript engine is on by default for web content.
* Improvements to the Gecko layout engine, including speculative parsing for faster content rendering.
* Removed the new tab-switching behavior based on feedback from users
* Support for new web technologies such as the