uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.
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Raymond Hill 266ec4894b
New static network filter option urlskip=
Related issue:
https://github.com/uBlockOrigin/uBlock-issues/issues/3206

The main purpose is to bypass URLs designed to track whether a user
visited a specific URL, typically used in click-tracking links.

The `urlskip=` option ...

- ... is valid only when used in a trusted filter list
- ... is enforced only on top documents
- ... is enforced on both blocked and non-blocked documents
- ... is a modifier, i.e. it cannot be used along with other
      modifier options in a single filter

The syntax is `urlskip=[steps]`, where steps is a space-separated
list of extraction directives detailing what action to perform on
the current URL.

The only supported directive in this first commit is `?name`,
which purpose is to extract the value of a named URL parameter
and use the result as the new URL. Example:

  ||example.com/path/to/tracker$urlskip=?url

The above filter will cause navigation to

  https://example.com/path/to/tracker?url=https://example.org/

to automatically bypass navigation to `example.com` and navigate
directly to

  https://example.org/

It is possible to recursively extract URL parameters by using
more than one directive, example:

  ||example.com/path/to/tracker$urlskip=?url ?to

More extraction capabilities may be added in the future.
2024-09-15 09:17:19 -04:00
.github actions/checkout@v3 => actions/checkout@v4 2024-03-11 19:31:17 -04:00
assets Import changes from https://github.com/gorhill/uBlock/pull/3924 2024-09-05 14:51:47 -04:00
dist Make Firefox dev build auto-update 2024-09-14 00:15:41 -04:00
docs Fix typos in README, docs, and JS comments 2022-03-13 08:56:26 -04:00
platform Use dummy dns API when it's not present 2024-09-13 11:20:37 -04:00
src New static network filter option urlskip= 2024-09-15 09:17:19 -04:00
tools [mv3] Add minimal ability to diagnose ruleset issue 2024-07-29 14:54:46 -04:00
.eslintrc.yml Add ability to directly evaluate static network filtering engine 2024-09-02 19:32:56 -04:00
.gitignore Ignore transient py stuff 2024-08-01 10:37:22 -04:00
.gitmodules Use git clone instead of submodule to pull uAssets dependencies 2022-11-14 09:50:53 -05:00
.jshintrc Refactor scriptlets injection code 2023-03-24 14:05:18 -04:00
CHANGELOG.md Update changelog 2024-09-12 11:41:26 -04:00
CONTRIBUTING.md Update CONTRIBUTING.md (#3889) 2023-04-15 19:04:07 -04:00
LICENSE.txt first commit 2014-06-23 18:42:43 -04:00
Makefile Add ability to clean dist/build/[assets-related folders] 2024-02-25 18:27:07 -05:00
MANIFESTO.md Update MANIFESTO.md (#3888) 2023-04-15 15:42:12 -04:00
README.md Update README.md 2024-08-02 11:20:34 -04:00
RELEASE.HEAD.md Move the repetitive portion of release notes to the bottom 2023-11-05 16:42:33 -05:00
REMOVED.md Added data about old popup panel 2022-11-08 16:53:04 -05:00

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uBlock Origin (uBO)

BEWARE! uBO is (and has always been) COMPLETELY UNRELATED to the website ublock.org.


Get uBlock Origin for Firefox Get uBlock Origin for Microsoft Edge Get uBlock Origin for Opera Get uBlock Origin for Thunderbird


Get uBlock Origin for Chromium
IMPORTANT: About Google Chrome's "This extension may soon no longer be supported"


uBlock Origin (uBO) is a CPU and memory-efficient wide-spectrum content blocker for Chromium and Firefox. It blocks ads, trackers, coin miners, popups, annoying anti-blockers, malware sites, etc., by default using EasyList, EasyPrivacy, Peter Lowe's Blocklist, Online Malicious URL Blocklist, and uBO filter lists. There are many other lists available to block even more. Hosts files are also supported. uBO uses the EasyList filter syntax and extends 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 criminalization of the inalienable right to privacy.

Ads, "unintrusive" or not, are just the visible portion of the privacy-invading means entering your browser when you visit most sites. uBO's primary goal is to help users neutralize these privacy-invading methods in a way that welcomes those users who do not wish to use more technical means.


Documentation

Basic Mode Advanced Mode
The simple popup user interface for an install-it-and-forget-it type of installation that is configured optimally by default. The advanced popup user interface includes a point-and-click firewall that is configurable on a per-site basis.

Visit the Wiki for documentation.

For support, questions, or help, visit /r/uBlockOrigin.

Installation

Required Permissions

Firefox

Firefox Add-ons

Development Builds

uBO works best on Firefox and is available for desktop and Android versions.

Thunderbird

Thunderbird Add-ons

In Thunderbird, uBlock Origin does not affect emails, just feeds.

Chromium

Chrome Web Store

Microsoft Edge Add-ons (Published by: Nicole Rolls)

Opera Add-ons

Development Builds

uBO should be compatible with any Chromium-based browser.

All Programs

Do NOT use uBO with any other content blocker. uBO performs as well as or better than most popular blockers. Other blockers can prevent uBO's privacy or anti-blocker-defusing features from working correctly.

Manual Installation

Enterprise Deployment

Deploying uBO

Release History

Releases Page

Translations

Help translate uBO via Crowdin.

About

Manifesto

Privacy Policy

GPLv3 License

Free. Open-source. For users by users. No donations sought.

If you ever want to contribute something, think about the people working hard to maintain the filter lists you are using, which are available to use by all for free.