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Firefox 3.1 beta 1 Now Available Testing

Please note: Firefox 3.1 Beta 1 is a public preview release intended for developer testing and community feedback. It includes many new features as well as improvements to performance, web compatibility, and speed. We recommend that you read the release notes and known issues before installing this beta.

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
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