When comparing Ghostery vs µBlock Origin, the Slant community recommends µBlock Origin for most people. In the question“What are the best ad blocking browser plugins?” µBlock Origin is ranked 2nd while Ghostery is ranked 6th. The most important reason people chose µBlock Origin is:
Licensed under GPLv3.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Blocks many ads
As a side-effect of stopping trackers, Ghostery also disables many annoying advertisements, and with less of a performance hit than the various AdBlocks (especially when using both).
Pro Prevents you from getting tracked
Pro Free and open source
Licensed under GPLv3.
Pro Offers a quick way to whitelist websites
Pro Does more than just blocking ads
The plugin, through filters, can block malicious websites and tracking, making it very versatile.
Pro Lightweight
The plugin typically uses less memory and CPU time in comparison with other solutions, including Adblock Plus and Ghostery.
Pro Supports element hiding
Cons
Con Sells user data
Helps advertisers by selling user data. Though this can be turned off.