Firefox 4 Beta 1 is now available for download. The beta includes some of these new features
- New Add-Ons Manager: gives you more space to manage your Add-Ons, Themes and Plugins. Customizing your browser has never been easier!
- HD Video: Watch hardware-accelerated, super-smooth, HD-quality HTML5 video on YouTube using the new WebM format.
- Privacy improvements: Mozilla always puts privacy first, and this latest beta fixes flaws in some Web standards that could expose your browser history.
- Crash Protection: Experience uninterrupted browsing (now available on all platforms) – when a plugin crashes or freezes, you can resume browsing by simply refreshing the page.
- Performance: We know that performance is important. In this version, we focused on improving responsiveness at start-up and during page loads. This is just the beginning for performance improvements in Firefox 4.
Remember that all your add-ons might not work right away. If you have something that you want the Firefox dev team to know about make sure you use the feedback button to the right of the navigation bar. A full set of release notes can be found on the Firefox 4 Beta 1 release notes page.