Overview
uBlock Origin is a fast, memory-efficient wide-spectrum content blocker for Chromium and Firefox. It blocks ads, trackers, coin miners, popups, anti-blockers, and malware sites using multiple filter lists. It aims to help users neutralize privacy-invading methods.
README Preview
[![Badge Commits]][Commit Rate] [![Badge Issues]][Issues] [![Badge Localization]][Crowdin] [![Badge License]][License] [![Badge NPM]][NPM] [![Badge Mozilla]][Mozilla] [![Badge Chrome]][Chrome] [![Badge Edge]][Edge] *** uBlock Origin (uBO) | Browser | Install from ... | Status | | :-------: | ---------------- | ------ | | | Firefox Add-ons | [uBO works best on Firefox](https://github.com/gorhill/uBlock/wiki/uBlock-Origin-works-best-on-Firefox) | | | Edge Add-ons | | | Opera Add-ons | | | Chrome Web Store | About Google Chrome's "This extension may soon no longer be supported"End of support on Chrome 139 | | | Thunderbird Add-ons | [No longer updated and stuck at 1.49.2.](https://github.com/uBlockOrigin/uBlock-issues/issues/2928) Later versions require "GitHub - Releases". | | | GitHub - Releases | Stable and development versions on Firefox, Chromium MV2, and Thunderbird. Must be placed manually into web browsers; the Chromium and Thunderbird versions usually won't auto-update. *** uBlock Origin (uBO) is a CPU and memory-efficient [wide-spectrum content blocker][Blocking] for Chromium and Firefox. It blocks ads, trackers, coin miners, popups, annoying anti-blockers, malware sites, etc., by default using [EasyList][EasyList], [EasyPrivacy][EasyPrivacy], [Peter Lowe's Blocklist][Peter Lowe's Blocklist], [Online Malicious URL Blocklist][Malicious Blocklist], and uBO [filter lists][uBO Filters]. There are many other lists available to block even more. Hosts files are also supported. uBO uses the EasyList filter syntax and [extends][Extended Syntax] the syntax to work with custom rules and filters. You may easily unselect any preselected filter lists if you think uBO blocks too much. For reference, Adblock Plus installs with only EasyList, ABP filters, and Acceptable Ads enabled by default. It is important to note that using a blocker is **NOT** [theft]. Do not fall for this creepy idea. The _ultimate_ logical consequence of `blocking = theft` is the crimina