uBlock Origin
Finally, an efficient blocker. Easy on CPU and memory.
What is uBlock Origin?
uBlock Origin is a Chrome extension primarily designed for blocking unwanted content. It's not just an ad blocker, but offers a wide spectrum of actions, including ads and tracking, malware blocking, cookie warnings, and more, while being light on CPU and memory. It provides user flexibility in blocking content, enabling you to select the filters and create your own rules. All of this, for free and with transparency, as it’s an open-source project.
Extension stats
Users: 41,000,000+ 
Creation date: 2020-06-28
Manifest version: 2
Permissions:
- alarms
- contextMenus
- privacy
- storage
- tabs
- unlimitedStorage
- webNavigation
- webRequest
- webRequestBlocking
- <all_urls>
Size: 3.98M
Email: ub*****@raymondhill.net
URLs: Privacy policy
Ranking
# 7
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Extension summary
IMPORTANT: uBlock Origin is completely unrelated to the site "ublock.org".
uBlock Origin is not an "ad blocker", it's a wide-spectrum content blocker with CPU and memory efficiency as a primary feature.
Out of the box, these lists of filters are loaded and enforced:
- uBlock Origin filter lists
- EasyList (ads)
- EasyPrivacy (tracking)
- Peter Lowe’s Ad server list (ads and tracking)
- Online Malicious URL Blocklist
More lists are available for you to select if you wish:
See moreUser reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- Best adblocker available
- Effectively blocks ads that other extensions may not
- Makes browsing less annoying
- Long-time user satisfaction
- Simple and easy to use
Cons
- Possible removal or lack of support in the future due to Chrome policy changes
- Concerns over extension not following best practices for Chrome extensions
Most mentioned
- Concern about potential removal or deprecation of the extension
- High satisfaction and appreciation for its ad-blocking capabilities
- Impact on continued use of Chrome if the extension is no longer available
Recent reviews
I gotta tell you, it was perfect. Perfect! Down to the last minute detail.
by 
Kamil Sakhibgareev, 2024-11-20
Kamil Sakhibgareev, 2024-11-20 by 
Denizhan Demirhan, 2024-11-20
Denizhan Demirhan, 2024-11-20my beloved ublock <3333 blocking 3rd party script is so funny lmao u just watch everything crumbles amazing extension
by 
Krstia no, 2024-11-20
Krstia no, 2024-11-20Extension safety
Risk impact
uBlock Origin requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk likelihood
uBlock Origin has earned a good reputation and can be trusted.
Upgrade to see risk analysis details
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