uBlock Origin

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

uBlock Origin - Efficient and User-Friendly Content Blocker

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.

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Extension stats

By: Raymond Hill (gorhill)

Users: 39,000,000+

Rating: 4.68

(32,830)

39 new ratings

Version: 1.62.0 (Last updated: 2025-01-02)

Version code: 1.62.0

Creation date: 2020-06-28

Manifest version: 2

Permissions:

alarms
contextMenus
privacy
storage
tabs
unlimitedStorage
webNavigation
webRequest
webRequestBlocking
<all_urls>

Size: 4.01M

Email: ub*****@raymondhill.net

URLs: Privacy policy

Ranking

# 7

Other rankings

#1 in Privacy & Security

#2 in chrome keyword 96

#6 in ad-blocking keyword 94

#6 in details keyword 16 ▼ 3

#8 in install keyword 26 ▼ 4

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Other platforms

Not available on Android

Not available on Firefox

Not available on Edge

Want to check extension ranking and stats more quickly for other Chrome extensions? Install Chrome-Stats extension to view Chrome-Stats data as you browse the Chrome Web Store.

Extension summary

Analyze keywords

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:

User 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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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

Effective ad blocking
User-friendly and fast
Protects privacy effectively
Highly recommended by users
Strong loyalty from users who won't switch browsers without it

Cons

Occasional failures to block ads on certain sites
Concerns about the extension potentially being removed by Google
Some users have reported noticing degraded performance over time

Most mentioned

Best adblocker available
Fear of removal from Chrome
Alternative browsers will be used if it is removed
Immediate effectiveness upon installation
Essential for privacy protection

User reviews

nao tire a extensao, google, seu lixo!

Killer Queen, 2025-02-12

Best adblocker. I can see the source code too which is even better

Eli Cardoso (niceEli), 2025-02-12

Good

Sapphire 20, 2025-02-12

View all user reviews

Extension safety

Risk impact

uBlock Origin requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of uBlock Origin. Use it at your own risk.

Risk likelihood analysis details

Medium This extension was updated in the past 3 months. New updates may not be stable or safe.
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