Firefox 3.1 Beta 2 Welcome ScreenFirefox 3.1 beta 2 has been released and available for download. Firefox 3.1 Beta 2 is available in over 50 languages as a public preview release intended for developer testing and community feedback. It includes:
- 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.
- 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 and elements, the W3C Geolocation API, JavaScript query selectors, CSS 2.1 and 3 properties, SVG transforms and offline applications.








