uBlock Origin

uBlock Origin

Finally, an efficient blocker. Easy on CPU and memory.

uBlock Origin promo image
What is uBlock Origin?

uBlock Origin is a very popular Chrome extension by Raymond Hill (gorhill). This extension has 10,000,000+ weekly active users, a good user rating of 4.68, and is most similar to uBlock and Privacy Badger. The latest version, 1.46.0, was updated a month ago.

Stats date:
Install link: Chrome Web Store
Users: 10,000,000+
Version: 1.46.0 (Last updated: 2022-12-29)
Creation date: 2020-06-28
Manifest version: 2
  • contextMenus
  • privacy
  • storage
  • tabs
  • unlimitedStorage
  • webNavigation
  • webRequest
  • webRequestBlocking
  • <all_urls>
Featured: Yes
Size: 3.20M
Email: Click to see
Risk impact: Very high risk impact
Risk likelihood: Very low risk likelihood
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Other platforms

uBlock Origin
uBlock Origin (v1.46.0)
14,905 6,353,321
uBlock Origin
uBlock Origin (v1.46.0)
1,543 8,085,404
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 more
Risk impact

uBlock Origin requires a lot of risky permissions and is not safe to use. Avoid installing this extension unless you absolutely trust this publisher.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

uBlock Origin has earned a good reputation and can be trusted.

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension, especially ones with higher risk impact and/or higher risk likelihood.

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User reviews
Лучший блокировщик рекламы, даже адблок не так блокирует рекламу как этот, так же ОП меньше задействует что тоже приятно, уже больше года использую его! Спасибо разработчикам, пару шекелей закину!)

Loved it while it worked, then the following happened: I had issues loading web pages and after a bit of troubleshooting i realised that when i disabled the extension web pages would load again... am i the only one experiencing this?
by Om Be Om Be, 2023-01-30

Great work, does job well
by Kayla Sun Kayla Sun, 2023-01-30
View all user reviews
Promo images
uBlock Origin marquee promo image
Marquee promo image
uBlock Origin large promo image
Large promo image
uBlock Origin small promo image
Small promo image
Similar extensions

Here are some Chrome extensions that are similar to uBlock Origin:

uBlock uBlock
User count: 725,977
Rating: 1,877
A no-nonsense ad blocker
Privacy Badger Privacy Badger
User count: 1,366,233
Rating: 1,684
Privacy Badger automatically learns to block invisible trackers.
f*ck overlays f*ck overlays
Publisher: mark.muego
User count: 70,000
Rating: 238
adds a context menu to delete sign-up/sign-in overlays that prevent you from viewing a page

The manifest file declares the requirements and permissions that a Chrome extension will have access to. By reviewing the manifest, you may be able to determine if a Chrome extension is over-reaching (for example, if an extension is overriding your new tab page, or search provider, or requesting access to your web activities without any good reason).

  "update_url": "https://clients2.google.com/service/update2/crx",
  "author": "Raymond Hill & contributors",
  "background": {
    "page": "background.html"
  "browser_action": {
    "default_icon": {
      "16": "img/icon_16.png",
      "32": "img/icon_32.png"
    "default_popup": "popup-fenix.html",
    "default_title": "uBlock Origin"
  "commands": {