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Future releases of uBlock will be made available on our website athttps://ublock.org

uBlock: an efficient blocker extension for your browser. Fast, potent, and lean.

• Getting Started & Installation
• Performance & Benchmarks
• Tips
• FAQ
• About

• Chrome: available on theChrome Web Store or formanual installation.

• Safari: available to installfrom the homepage.

• MacOS App: available for installfrom the homepage or from theApp Store.

• Firefox: available on theFirefox Add-ons site, or formanual installation.

• Opera: Opera shares Chrome's underlying engine, so you can install uBlock simply by grabbing thelatest release for Chrome.

uBlock has tooltips throughout its UI to help you along. But just in case you need it,here's a quick guide for basic usage.

On average, uBlockreally does make your browser run leaner.^[1]

Chrome

Safari

Firefox

^{[1] An overview of the benchmark is available atthis wiki page.}

uBlock is also CPU-efficient

^{Details of the benchmark available inthis LibreOffice spreadsheet.}

Being lean and efficient doesn't mean blocking less

^{For details of benchmark, seeuBlock and others: Blocking ads, trackers, malwares.}

Some quick tests:

_{These tests are by no means complete or comprehensive, but do remain helpful.}

• Index
• Web page components
• Popups

• To benefit from uBlock's higher efficiency, it's advised that you don't use other blockers at the same time (such as AdBlock or Adblock Plus). uBlock will doas well or better than most popular ad blockers.

• It's important to note that blocking adsisnot theft. Don't fall for this creepy idea. Theultimate logical consequence ofblocking = theft is the criminalisation of the inalienable right to privacy.

• EasyList,Acceptable Ads,ABP Anti-Circumvention Filter List‎ andCryptocurrency (Bitcoin) Mining Protection List‎ are enabled by default when you install uBlock. Many more lists are readily available to block trackers, analytics, and more. Hosts files are also supported.

• Once you install uBlock, you can easily un-select any of the pre-selected filter lists if you think uBlock blocks too much. For reference, Adblock Plus installs with onlyEasyList enabled by default.

• Feel free to readabout the extension's required permissions.

Some users might want to check outuBlock Origin: a noteworthy personal fork of uBlock from @gorhill with a slightly different featureset.

uBlock is a general-purpose content blocker, which means it can be used to block ads as well as other forms of content on webpages. uBlock can also be used to help users neutralize privacy-invading trackers. uBlock blocks ads through its support of theAdblock Plus filter syntax. uBlockextends the syntax and is designed to work with custom rules and filters.

** Please noterecent news about the status of the uBlock project as of June 22, 2018.**

Acknowledgment: uBlock comes with several filter lists ready to use out-of-the-box (including but not limited to: EasyList, Peter Lowe's, several malware filter lists). We deeply appreciate the people working hard to maintain those lists which are available to use by all for free.

GPLv3.