Microsoft has made the download available for free from its Web site here. Users of the previous betas will need to uninstall them before installing IE7 beta 3.
The software giant said the new beta included changes to the browser's look and feel.
Also, "Beta 3 allows users to add the e-mail button back to the toolbar, enables users to reorder the tabs by dragging them to the left or right, and enables horizontal scrolling while zooming," Microsoft said in documentation relating to the release.
Microsoft said it has also made various improvements to the way RSS feeds are handled, as well as fixed several layout-rendering bugs and improving the browser's reliability and security.