Early this year, Firefox 4 Beta 9 was released with a projected Final release for February. It wasn’t until March 9th that we saw a Firefox 4 Release Candidate. Now, AfterDawn reports that the Firefox 4 Final release will be available March 22nd. The new version of the popular browser includes enhanced performance and stability, increased HTML5 support (including Google’s WebM video format), and a revamped plug-in architecture called JetPack.
More than 70 percent of Firefox Add-ons are now compatible with Firefox 4, which should make upgrading much easier for users. You can also synchronize your Firefox history, bookmarks, open tabs, passwords and form data across multiple computers and mobile devices.
There are also a few extra goodies like Panorama, which allows you to drag and drop tabs into manageable groups to organize, name and arrange them in a visual way. Chrome was the first browser to allow you to turn web pages into apps and Firefox can now do the same. App Tabs are pinned tabs that can notify you of updates (ie. new emails, tweets, etc.).
Following the trend of browsers like IE9 and Chrome, Firefox 4 features a minimalistic and clean interface. While it mostly seems to be falling in line with its competition, the addition of hardware-acceleration may give it an edge as both Chrome and IE 9 only feature partial acceleration.