Mozilla published Firefox 4 Beta 4, this new release has a new tab management feature and debuts support for Direct2D hardware acceleration! The GPU acceleration feature is disabled by default, to activate it in the "about:config" page.
Firefox 4 Beta 4 is available in 39 languages.
Firefox Sync is now included by default.
A new feature gives users a visual overview of all open tabs, allowing them to be sorted and grouped.
Firefox now supports the HTML5 video "buffered" property.