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uBlock Origin vs AdGuard Browser Extension: catalog facts
uBlock Origin	AdGuard Browser Extension
Free Free and open source; no donations sought	Free The browser extension is free to install.
Browser extension	Browser extension
Wide-spectrum blocking of ads, trackers, coin miners, popups and malware sites using EasyList, EasyPrivacy and other… Designed to be CPU and memory efficient	Blocks ads, pop-ups and trackers Cosmetic filtering hides leftover page elements
Removed from the Chrome Web Store on 2026-08-31 with the Manifest V2 deprecation Microsoft Edge is transitioning consumers away from Manifest V2 extensions starting August 2026	Only filters inside the browser, not other apps System-wide filtering requires AdGuard's separate apps
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 20, 2026	Official website Full listing and sources Checked September 23, 2026

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