A wide-spectrum efficient blocker. Which block ads, trackers and malware sites. Supports Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird. Fast and lean, and as of 2017 still being actively improved. Forked from Small uBlock iconuBlock

uBlock Origin has received praise from technology websites, and is reported to be much less memory-intensive than other extensions

• The user decides what web content is acceptable or not in their browser.
• The uBlock Origin project does not support Adblock Plus' "Acceptable Ads Manifesto", because the "Acceptable Ads" marketing campaign is really the business plan of a for-profit entity.
• Users are best placed to know what is or is not acceptable to them. uBlock Origin's sole purpose is to give users the means to enforce their own choices.



Supported Platforms 3 notes on uBlock Origin's platform support

Mac Windows Linux Android Microsoft Edge Vivaldi Browser Google Chrome Safari Pale Moon Opera Chromium Firefox

Platform comments

  • Mac “As browser extension”
  • Windows “As browser extension”
  • Linux “As browser extension”

Apps for uBlock Origin

uBlock Origin is also a platform with 3 apps listed on AlternativeTo. Browse all 3 apps for uBlock Origin.

Links to official uBlock Origin sites

Official Website    GitHub


3rd-party filters Block ads Browser extension Google Chrome Extensions Configurable Custom filters Customizable Element blocker Firefox Extensions Lightweight Microsoft Edge extension Privacy focused Security & Privacy Security focused Website whitelisting Add a feature


Security & Privacy Web Browsers


icecat-extension privacy-protection


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4.3 out of 5 with 20 ratings

ReviewsView all

The good • I love it. It is owned and supported by a friendly community. Not a corporation. More secure because its code is publicly available for review and contributions on GitHub at...

See why people like uBlock Origin 😍

I have tested this on google chrome for over a year and the result at first seems fine but ran into things. I couldn't disable it for youtubers who i supported, so i have to click to disable and let...

See why people do not like uBlock Origin 😡 Post your review