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GNU LibreJS 4.7 released

From: Loic J. Duros
Subject: GNU LibreJS 4.7 released
Date: Thu, 31 May 2012 15:45:59 -0400
User-agent: Mozilla/5.0 (X11; Linux i686; rv:10.0.4) Gecko/20120510 Icedove/10.0.4

Version 4.7 of GNU LibreJS has been released.

GNU LibreJS aims to address the JavaScript problem described in The JavaScript Trap. LibreJS is a free add-on for GNU IceCat and other Mozilla-based browsers. It blocks nonfree nontrivial JavaScript while allowing JavaScript that is free and/or trivial.

You can download and install this new version from

If you own or maintain a website, please take the time to free your JavaScript:

* In certain circumstances, free scripts embedded on a page were blocked while they should have been allowed to run. This has been fixed.

* LibreJS now detects 256 different versions of popular free libraries, such as jQuery, MooTools, and Prototype. It uses the SHA1 hashes from the upstream files for this purpose. Only verbatim copies of these libraries are detected as free by LibreJS.

* A new module has been created to make LibreJS compatible with Https-Everywhere. Since IceCat ships with Https-Everywhere, this fix was a precondition to the next IceCat release.

* You can now add license information in your JS Web Labels for JavaScript that is embedded dynamically.

Please report bugs at address@hidden and remember to complain to websites you visit that have nonfree JavaScript.

Loic Duros

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