![uBlock Origin](https://addons.mozilla.org/user-media/addon_icons/607/607454-64.png?modified=mcrushed)
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
What is uBlock Origin?
uBlock Origin is a high-performance, wide-spectrum Firefox add-on. Beyond being just an 'ad blocker', it excels in blocking a wide array of content, including ads, trackers, coin miners and popups instantly. Pre-configured with several filter lists like EasyList (for ads) and EasyPrivacy (tracking), it offers immense customization to the users. The add-on is a unique blend of CPU and memory efficiency, aiming to deliver a seamless browsing experience.
Stats
By: Raymond Hill
Creation date: 2015-04-25
Weekly download count: 169,765
Firefox on Android: Yes
Risk impact: Very high risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 2
Permissions:
- alarms
- dns
- menus
- privacy
- storage
- tabs
- unlimitedStorage
- webNavigation
- webRequest
- webRequestBlocking See more
Size: 3.90M
URLs: Website ,Privacy policy
Stats date:
Chrome-Stats Rank
# 1
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Summary
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, uBO blocks ads, trackers, coin miners, popups, etc. through the following lists of filters, enabled by default:
- EasyList (ads)
- EasyPrivacy (tracking)
- Peter Lowe’s Ad server list (ads and tracking)
- Online Malicious URL Blocklist
- uBO's own lists
More lists are available for you to select if you wish:
- EasyList Cookie
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews.
Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated.
Pros
- Effectively blocks ads on complex sites like YouTube
- Responsive development community for fixing filter issues
- Works as intended with no issues
Cons
- Some websites seek to block uBlock Origin
- Difficulty updating filter in private mode
- Unclear indication of updated filter status
Most mentioned
- Effective ad blocking on complex sites like YouTube
- Positive experience with uBlock Origin
- Difficulty updating filter in private mode
Recent reviews
by Firefox user 18523113, 2024-07-25
by FoxOnFire, 2024-07-25
by Louis, 2024-07-25
Safety
Risk impact
uBlock Origin is very risky to use and it requires a lot of sensitive permissions. Avoid installing this add-on unless you absolutely trust this publisher.
Risk likelihood
uBlock Origin has earned a good reputation and can be trusted.
Upgrade to see risk analysis details