Compliments AdBlock Plus and NoScript well Rated 5 out of 5 stars

Just like NoScript, allowing Ghostery to block everything all the time can cause some strange problems on certain websites. However, after careful tuning using a combination of whitelisting and selectively allowing web bugs, one can very accurately control privacy on almost all websites.Ghostery is a fine -- and highly recommended -- addition to your privacy toolbox, and nicely compliments AdBlock Plus, NoScript, WOT and Perspectives to keep the interwebs slightly less unsafe.

This review is for a previous version of the add-on (2.6.0.1).  This user has a previous review of this add-on.