Mozilla’s Firefox 4 Beta 4 comes with two new features that some users might find interesting, namely, Panorama and Sync. The Panorama feature allows users to overview all open tabs and group into various sets via a drag and drop interface. With Synch, Firefox Home (an iPhone app that makes it easier Firefox users to access some of its features on their devices) users can synchronise bookmarks, history, passwords and many more across multiple computers and the iPhone through a secured mechanism.
See the official video demonstration of Firefox Panorama below.
Firefox 4 Beta 4 is available for Mac, Linus and Windows users.