Rated 4 out of 5 stars
This is a must-have extension, because it removes so much unneeded clutter from surfing the web. Thanks to a white-list and the easily accessible disable/pause function for the whole blocking or for single sites, Ghostery is the perfect companion for any Firefox user.
My only issue - which is admittedly small - is with the navigation bar icon of Ghostery. It's truly minor, but the icon constantly changes size from one tab to another or from one website to the next. These repeated resizes drive me crazy, which is why I don't use the icon anymore. If we could get a fixed-width button (or an option to disable the number being displayed), Ghostery would deserve a full five stars.