Mozilla just made Firefox 4 officially available for desktop, and surprisingly Firefox 4 for mobile is also already available, in release candidate form that is. Of course, the app has been beta for six months. According to Mozilla, this new build provides a better overall user experience with faster scrolling and improved Firefox Sync, along with other awesome features like Awesome Screen smart shortcuts, tabbed browsing, Firefox Add-ons, and Persona themes. Sounds very much like its desktop counterpart. Head over to Mozilla’s page for the Android and Maemo download links.