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IceCat/GNU LibreJS

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Disclaimer: Do not edit the Free Software Directory with GNU LibreJS enabled as it is known to insert random line breaks.

LibreJS is a browser extension that helps users avoid what Richard Stallman calls the Javascript Trap. It allows users to block javascript code that is neither free nor trivial. It works on recent versions of IceCat and other Firefox/Mozilla-based clones.

GNU LibreJS is currently very resource demanding. The LibreJS project is seeking more JavaScript programmers to help maintain this browser extension. If you want to help, send an email to <>.

Heckert gnu.small.png This is a GNU package:librejs


Download version 6.0.13 (beta)
released on 5 May 2016

VCS Checkout


Extension or Plugin

This package can be used as an extension, plugin, or add-on to:


LicenseVerified byVerified onNotes
GPLv3orlaterAndrew Engelbrecht4 June 2012

Leaders and contributors

Loic J. Duros Maintainer

Resources and communication

Audience Resource type URI
Help Mailing List Info/Archive
Bug Tracking Mailing List Subscribe
Bug Tracking Mailing List Info/Archive
Programmer VCS Repository Webview
General Download
Help Mailing List Subscribe

Software prerequisites

Kind Description
Required to use Recent IceCat / Firefox clone / Mozilla based browser

This entry (in part or in whole) was last reviewed on 10 May 2016.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

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