Firefox 3 beta 2 is now available to be downloaded. Updated versions include Windows, Mac OS, and Linux.

The new version displays many improvements over beta 1, best improvements include plugs for memory leaks, security fixes, and a better download manager.

The updates to the download manager are very good. The new manager allows you resume stopped downloads, and it includes a built in virus detector.

One great new feature is the ability to zoom in on a Web page. There’s now one-click bookmarking and smart folders for bookmarks.

The Mozilla claims that Web site rendering is faster than it was in FF3 beta 1, we didn’t notice any difference. But from Firefox 2 to Firefox 3 beta 1 we did see an improvement in speed.

You may download a portable version of Firefox 3 beta 2 from Portable Apps.