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102 lines
5.4 KiB
Markdown
102 lines
5.4 KiB
Markdown
# <img src="https://raw.githubusercontent.com/gorhill/uBlock/master/src/img/icon_128.png"/>
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## µBlock
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**An efficient blocker for WebKit- and Blink-based browsers. Fast, potent, and lean.**
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> * [Purpose & General Info](#philosophy)
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> * [Performance and Efficiency](#performance)
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> * [Memory](#memory)
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> * [CPU](#cpu)
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> * [Blocking](#blocking)
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> * [Installation](#installation)
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> * [Release History](#release-history)
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> * [Wiki](https://github.com/gorhill/uBlock/wiki)
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# Philosophy
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µBlock is not an *ad blocker*; it's a general-purpose blocker. µBlock blocks ads through its support of the [Adblock Plus filter syntax](https://adblockplus.org/en/filters). µBlock [extends](https://github.com/gorhill/uBlock/wiki/Filter-syntax-extensions) the syntax and is designed to work with custom rules and filters.
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That said, it's important to note that using a blocker is **NOT** [theft](https://twitter.com/LeaVerou/status/518154828166725632). Don't fall for this creepy idea. The _ultimate_ logical consequence of `blocking = theft` is the criminalisation of the inalienable right to privacy.
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Ads, "unintrusive" or not, are just the visible portions of privacy-invading apparatus entering your browser when you visit most sites nowadays. **µBlock's main goal is to help users neutralize such privacy-invading apparatus** — in a way that welcomes those users who don't wish to use more technical, involved means (such as [µMatrix](https://github.com/gorhill/uMatrix)).
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_EasyList_, _Peter Lowe's Adservers_, _EasyPrivacy_ are enabled by default when you install µBlock. Many more lists are readily available to block trackers, analytics, and more. Hosts files are also supported.
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# Performance
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## Memory
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<p align="center">
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On average, µBlock <b>really</b> does make your browser run leaner<br>
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<img src="https://raw.githubusercontent.com/gorhill/uBlock/master/doc/benchmarks/mem-usage-overall-chart-20141224.png" /><br>
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<sup>Details of the benchmark available in <a href="https://github.com/gorhill/uBlock/blob/master/doc/benchmarks/mem-usage-overall-20141224.ods">this LibreOffice spreadsheet</a>.</sup>
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</p>
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**Important note regarding memory usage:**
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<sup>There is currently a [bug in Chromium 39+ which causes a new memory leak each time the popup UI of an extension is opened](https://code.google.com/p/chromium/issues/detail?id=441500).</sup>
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<sup>This affects *all* extensions.</sup>
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<sup>As such, please be informed of that when measuring Chromium's memory usage. In the benchmarks, I avoided opening the popups completely.</sup>
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## CPU
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<p align="center">
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µBlock is also easy on the CPU<br>
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<img src="https://raw.githubusercontent.com/gorhill/uBlock/master/doc/benchmarks/cpu-usage-overall-chart-20141226.png" /><br>
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<sup>Details of the benchmark available in <a href="https://github.com/gorhill/uBlock/blob/master/doc/benchmarks/cpu-usage-overall-20141226.ods">this LibreOffice spreadsheet</a>.</sup>
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</p>
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## Blocking
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<p align="center">
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Being lean and efficient doesn't mean blocking less<br>
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<img src="https://raw.githubusercontent.com/gorhill/uBlock/master/doc/benchmarks/privex-201409-30.png" /><br>
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<sup>For details of benchmark, see
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<a href="https://github.com/gorhill/uBlock/wiki/%C2%B5Block-and-others:-Blocking-ads,-trackers,-malwares">µBlock and others: Blocking ads, trackers, malwares</a>.
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</p>
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## Installation
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Install µBlock from the [Chrome store](https://chrome.google.com/webstore/detail/cjpalhdlnbpafiamejdnhcphjbkeiagm), the [Opera store](https://addons.opera.com/en-gb/extensions/details/ublock/), or [manually](https://github.com/gorhill/uBlock/tree/master/dist#install).
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Feel free to read [about the extension's required permissions](https://github.com/gorhill/uBlock/wiki/About-the-required-permissions).
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**Note:**
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To benefit from µBlock's higher efficiency, it's advised that you don't use other inefficient blockers at the same time (such as AdBlock or Adblock Plus). µBlock will do [as well or better](#blocking) than most popular ad blockers.
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## Release History
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See the [releases pages](https://github.com/gorhill/uBlock/releases) for a history of releases and highlights for each release.
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## Documentation
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µBlock's functionality is self-explanatory and intuitive for the most part. One thing to note after you get started is the big power button in µBlock's popup:
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The big power button is to disable/enable µBlock for the specific current site/hostname (as extracted from the URL of the current page).
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**In other words, it applies to the current site only; it is *not* a global power button.** The state of the power switch for a specific site will be remembered.
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For advanced usage, read about [dynamic filtering](https://github.com/gorhill/uBlock/wiki/Dynamic-filtering:-quick-guide) and more on [µBlock's wiki](https://github.com/gorhill/uBlock/wiki).
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## About
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Free. Open source. For users by users. No donations sought.
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Without the preset lists of filters, this extension is nothing. So if ever you
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really do want to contribute something, think about the people working hard
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to maintain the filter lists you are using, which were made available to use by
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all for free.
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You can contribute by helping to translate this project. There's an
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[entry on Crowdin](https://crowdin.net/project/ublock) where you may contribute to µBlock's localization.
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## License
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[GPLv3](https://github.com/gorhill/uBlock/blob/master/LICENSE.txt).
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