Rated 3 out of 5 stars

Good as far as it goes, but it really needs to let you store a list of sites whose "web bugs" are allowed. (Some sites, such as banks, are disabled if you block their bugs -- but as it is now, the only workaround is to turn Ghostery completely off, which causes "leaks" if you have other sites open in other tabs.)

Also, Ghostery ought to allow itself to be used with Thunderbird (needed when TB displays web pages as a result of viewing RSS feeds or HTML mail with redirects).

This review is for a previous version of the add-on (2.0.1).