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TOOL PROFILE

uBlock Origin

An open-source content blocker that filters many ads and tracking requests using lists you choose.

Published Oct 31, 2026Privacy fit: PrivateResearch: research only
Best forBlocking unwanted page requests in a supported browser.
Plan typeFree
Open sourceYes
Research transparency

Product details checked on 2026-10-31.

uBlock Origin filters ads, trackers, and other requests in the browser. The project recommends Firefox for the full extension. Chrome users can check the separate uBlock Origin Lite project. The two extensions have different features. See the official installation notes for current browser support.

What it offers

  • Open-source content blocking
  • Custom filter lists
  • No account required

Limitations

  • The full extension and uBlock Origin Lite have different browser support and features. Check the official installation notes.
  • Some sites break until a narrow exception is added.
  • Unofficial copies or similarly named extensions may not be trustworthy.

Explore the official provider

Before deciding, review current product documentation, service terms and plan details.

Official website

Frequently asked questions

Does this tool guarantee anonymity?

No. Every product has limits, and your device, accounts, settings, and the people you communicate with still matter. Review the listed sources before relying on it.

Sources and further reading

Review source dates and policies before acting; external pages may change.

  1. github.com ↗
  2. github.com ↗