Firefox 3.1 Beta is now available to download, and it's FAST

Firefox 3.1 Beta 1 is now available for download. This milestone is focused on testing the core functionality provided by many new features and changes to the platform scheduled for Firefox 3.1. Ongoing planning for Firefox 3.1 can be followed at the Firefox 3.1 Planning Center, as well as in mozilla.dev.planning and on irc.mozilla.org in #shiretoko.

New features and changes in this milestone that require feedback include:

• Web standards improvements in the Gecko layout engine
• Added support for CSS 2.1 and CSS 3 properties
• A new tab-switching shortcut that shows previews of the tab you’re switching to
• Improved control over the Smart Location Bar using special characters to restrict your search
• Support for new web technologies such as the

More information about new web developer features are available in the Web Tech blog post.

Testers can download Firefox 3.1 Beta 1 builds for Windows, Mac OS X, and Linux in 36 different languages. Developers should also read the Firefox 3.1 for Developers article on the Mozilla Developer Center.