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AdGuard Browser Extension vs Privacy Badger: catalog facts
AdGuard Browser Extension	Privacy Badger
Free The browser extension is free to install.	Free Free and open source under the GPL.
Browser extension	Browser extension
Blocks ads, pop-ups and trackers Cosmetic filtering hides leftover page elements	Blocks trackers it observes behaving badly, not only ones on a list Made by the EFF, with no monetisation attached
Only filters inside the browser, not other apps System-wide filtering requires AdGuard's separate apps	Not an ad blocker; ads that do not track are left alone Learning-based blocking can miss trackers that appear on only one site
Browser extension	Browser extension
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is 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.