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AdBlock vs Ghostery: catalog facts
AdBlock	Ghostery
Freemium Free extension; AdBlock Premium adds paid features such as cookie banner blocking.	Freemium The blocker is free and open source. Ghostery's contributor plan and extra services are…
Browser extension	Browser extension
Blocks pop-ups, banners and video ads Blocks third-party trackers	Names the trackers on each page and who owns them Blocks cookie consent dialogs as well as ads and trackers
Allows Acceptable Ads by default Cookie banner blocking requires the paid Premium tier	The company's earlier advertising-related business model still makes some people wary Extra features such as private search need an account or subscription
Browser extension	Browser extension
Closed source	Open source
License not stated	License: MPL-2.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.