[[!meta title="License and source code distribution"]]

Tails is [Free Software](https://www.gnu.org/philosophy/free-sw.html): you can download, use, and share it with no restrictions.

The Tails source code is released under the GNU/GPL (version 3 or above) and is Copyright (C) Tails developers <foundations@tails.net>. Any exception to this rule is documented either below or in the affected source file.

However, Tails, like Debian, includes closed source binary firmware in order to work on as much hardware as possible.

Tails is a registered trademark of The Tor Project, Inc. See our [Trademark and Brand policy](https://www.torproject.org/about/trademark/).

Source code

Most of the software included in Tails is taken directly from upstream Debian packages and is neither modified nor recompiled by Tails.

The source code of software that is specific to Tails is available in [[our Git repositories|contribute/git]].

The [[!tails_gitweb config/chroot_local-includes/usr/share/tails/chroot-browsers/unsafe-browser/extensions/red-2.0-an+fx.xpi desc="red theme"]] used by Tails' _Unsafe Browser_ was downloaded from Mozilla add-ons website (<https://addons.mozilla.org/en-US/firefox/addon/simplyred/>):

license: Creative Commons Attribution 3.0

author: [Firefox user 14030863](https://addons.mozilla.org/en-US/firefox/user/14030863/)

Icons copied from [[!debpts gnome-icon-theme]]:

[[!tails_gitweb config/chroot_local-includes/usr/share/tails/persistent-storage/icons/tps-NetworkConnections.png]]

[[!tails_gitweb config/chroot_local-includes/usr/share/tails/persistent-storage/icons/tps-WelcomeScreen.png]]

license: GPL-2+

Copyright:

2002-2008 Andreas Nilsson <nisses.mail@home.se>

2002-2008 Hylke Bons <h.bons@student.rug.nl>

2002-2008 Jakub Steiner <jimmac@novell.com>

2002-2008 Josef Vybíral <cornelius@vybiral.info>