Mozilla released Beta 2 version of their Firefox 4.0 browser. With this update, Mac OS users will be able to see their tabs on the top, just like Windows. This update will also have an all new “Apps Tab” which will keep an eye on your most surfed sites. You can also select your favorite services and pin them on Apps Tabs.

Apps Tabs will be located permanently on the left side of your Mozilla browser. You can pin your favorites in a top to bottom manner just the way it works in Windows Sidebar. Gmail, Facebook, Twitter, Yahoo, Google, etc all can be accessed with just a click with the new Mozilla Firefox 4.0 Beta 2.

To download this update you can visit Mozilla’s official site or click here.