What AdGuard AdBlocker is

AdGuard blocks ads, pop-ups, trackers, phishing pages, and other unwanted requests. It supports custom filters and cosmetic page cleanup while documenting why its tab, navigation, and site permissions are needed.

Feature coverage

  • Ad and popup blocking
  • Tracker and malicious-domain filters
  • Custom lists and cosmetic page rules

What stands out

  • Very large public adoption
  • Current August 2026 maintenance
  • Free and open-source extension code

Tradeoffs to know

  • Broad site access is central to blocking
  • Aggressive rules can break some pages
  • Overlaps with protections built into some browsers

Permissions and privacy

Page access

Protection tools often need broad request or page access to block trackers and malicious content. That reach is functional, but it makes publisher trust and update history especially important.

Data notes

A privacy extension is itself in a privileged position. We weigh the store disclosure, publisher identity, code transparency, and maintenance record—not the privacy label alone.

Pricing

Free and open source browser extension. Pricing and plan limits change more often than store metadata, so use the linked developer page as the final check before subscribing.

Alternatives

Sources

We used the official Chrome Web Store listing and first-party developer material. Public metrics can change after the fact-check date.

  1. Chrome Web Store listing

    Rating, rating count, public users, version, update date, and publisher disclosures verified 2026-08-30.

  2. AdGuard AdBlocker product documentation

    First-party product, feature, support, or project documentation used for workflow context.

  3. Extension Reviewer methodology

    How public claims, permissions, evidence, and tradeoffs are reviewed.

More in Privacy & security

See the privacy & security guide