Mozilla Firefox gets a lot of praise for the countless third-party extensions that add features like FTP, download management, and tab customization to the open-source browser. The most popular browser on the market, Internet Explorer, also has its fair share of add-ons, but nowhere near the number or quality of its competitor.
One new download for Internet Explorer, however, adds a number of valuable features that are only replicated in numerous different Firefox extensions. Among its many enhancements, IE7Pro adds tab management, ad blocking, Flash blocking, crash recovery, and the ability to re-open closed tabs to the Microsoft browser. Even cooler, it allows user-based scripts much like Greasemonkey for Firefox. Again, the scripts aren't nearly as impressive as Greasemonkey, but the idea is a good one.