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GNU IceCat (originally known as GNU IceWeasel) is part of GNUzilla. GNUzilla is the GNU version of the Mozilla Application Suite (originally known as Mozilla), and GNU IceCat is the GNU version of the Firefox ESR (Extended Stable Release) browser.

The GNU Project keeps IceCat in synchronization with upstream development of Firefox while removing all trademarked artwork. Unlike Firefox, IceCat recommends only free software add-ons. With a focus on freedom and privacy, IceCat is designed to make it easy for the user to: block execution of non-free JavaScript with GNU LibreJS or disable all JS, block privacy trackers with SpyBlock (Adblock Plus fork), get redirected to HTTPS when possible with HTTPS Everywhere, and more!

See also

"IRC irc:// " IRC general channel

Related Projects

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This package is listed in the following Collections:


LicenseVerified byVerified onNotes
GPLDavid Hedlund12 July 2015
"Because we hope and want our privacy enhancements to be picked up by Mozilla itself, we are keeping the same tri-licensing scheme for Gnuzilla/IceCat as GNU uses: MPL/GPL/LGPL." - icecat-<version>/README.IceCat
LGPLDavid Hedlund12 July 2015
"Because we hope and want our privacy enhancements to be picked up by Mozilla itself, we are keeping the same tri-licensing scheme for Gnuzilla/IceCat as GNU uses: MPL/GPL/LGPL." - icecat-<version>/README.IceCat
MPLDavid Hedlund15 August 2015
"Because we hope and want our privacy enhancements to be picked up by Mozilla itself, we are keeping the same tri-licensing scheme for Gnuzilla/IceCat as GNU uses: MPL/GPL/LGPL." - icecat-<version>/README.IceCat
License:MPLv2.0David Hedlund23 August 2015
"Binaries of this product have been made available to you by the Trisquel Project under the Mozilla Public License 2.0 (MPL)." - Help -> About IceCat

Leaders and contributors

Rubén Rodríguez Maintainer

Resources and communication

Audience Resource type URI
User manual pages Forum
Software development management system Developer
bug-gnuzilla -- GNUzilla discussion and bug reports. Mailing List
General users General
bug-gnuzilla -- GNUzilla discussion and bug reports. Bug Tracking
bug-gnuzilla -- GNUzilla discussion and bug reports. Support
Developer VCS Repository Webview

Software prerequisites

This entry (in part or in whole) was last reviewed on 14 September 2015.


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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