The steak and potatoes of Firefox. Rated 5 out of 5 stars

This extension pretty much makes internet browsing possible once again. Blocks everything that would otherwise lag the page, stuff a horde of malware into your computer, or just downright frustrate and infuriate you (I'm looking at the loud and intrusive ads here).

The one reason why I use FireFox to begin with.

This review is for a previous version of the add-on (2.1.2.1-signed).