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GNU IceCat

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For the Debian Iceweasel package, see Mozilla software rebranded by Debian. For the Open Content product information catalog, see Open Icecat.
GNU IceCat
Developer(s)GNUzilla team, GNU Project
Stable release
115.12.0[1] Edit this on Wikidata / 10 June 2024
Repository
Engine
  • Gecko
Edit this at Wikidata
Operating system
TypeWeb browser
LicenseMPL-2.0 (source files from Mozilla Firefox browser)[2]
GPL-3.0-or-later (Scripts to convert Firefox into IceCat)[2]
Websitewww.gnu.org/software/gnuzilla/

GNU IceCat, formerly known as GNU IceWeasel,[3] is a completely free version of the Mozilla Firefox web browser distributed by the GNU Project. It is compatible with Linux, Windows, Android and macOS.[4]

IceCat is released as a part of GNUzilla, GNU's rebranding of a code base that used to be the Mozilla Application Suite. As an internet suite, GNUzilla also includes a mail and newsgroup program, and an HTML composer.

Mozilla produces free and open-source software, but the binaries include trademarked artwork. The GNU Project attempts to keep IceCat in synchronization with upstream development of Firefox (long-term support versions) while removing all trademarked artwork and non-free add-ons. It also maintains a large list of free software plugins. In addition, it includes several security and privacy features not found in the mainline Firefox browser.

History

Origins of the name

The Mozilla Corporation holds the trademark to the Firefox name and denies the use of the name "Firefox" to unofficial builds that fall outside certain guidelines.[5] Unless distributions use the binary files supplied by Mozilla, fall within the stated guidelines, or else have special permission, they must compile the Firefox source with a compile-time option enabled that creates binaries without the official branding of Firefox and related artwork, using either the built-in free artwork, or artwork provided at compile time.[5]

This policy led to a long debate within the Debian Project in 2004 and 2005. During this debate, the name "Iceweasel" was coined to refer to rebranded versions of Firefox. The first known use of the name in this context is by Nathanael Nerode,[6] in reply to Eric Dorland's suggestion of "Icerabbit".[7] It was intended as a parody of "Firefox".[8] Iceweasel was subsequently used as the example name for a rebranded Firefox in the Mozilla Trademark Policy,[5] and became the most commonly used name for a hypothetical rebranded version of Firefox. By January 1, 2005, rebranding was being referred to as the "Iceweasel route".[9]

In August 2005,[10] the GNUzilla project adopted the GNU IceWeasel name for a rebranded distribution of Firefox that made no references to nonfree plugins.[10]

The term "ice weasel" appeared earlier in a line which cartoonist Matt Groening fictionally attributed to Friedrich Nietzsche: "Love is a snowmobile racing across the tundra and then suddenly it flips over, pinning you underneath. At night, the ice weasels come."[11]

Debian was originally given permission to use the trademarks, and adopted the Firefox name.[12] However, because the artwork in Firefox had a proprietary copyright license at the time, which was not compatible with the Debian Free Software Guidelines, the substituted logo had to remain.[13] In 2006, Mozilla withdrew their permission for Debian to use the Firefox name due to significant changes to the browser that Mozilla deemed outside the boundaries of its policy, changes which Debian felt were important enough to keep, and Debian revived the Iceweasel name in its place.

Subsequently, on 23 September 2007, one of the developers of the GNU IceWeasel package announced that the name would be changed to GNU IceCat from IceWeasel in the next release, so as to avoid confusion with Debian's separately maintained, unrelated rebranding of Firefox.[3] The name change took place as planned and IceCat is the current name.[8]

IceCat was ported to the Firefox 3 codebase during Google Summer of Code of 2008.[14][15][better source needed]

Distribution

GNU IceCat is freely downloadable as source code from the GNU project.[16]

Some Linux Distributions offer binary and source packages through their repositories, such as Trisquel,[17] Parabola GNU/Linux-libre[18] and Fedora.[19]

Additional security and privacy features

IceCat includes additional security features, such as the option to block third party zero-length image files resulting in third-party cookies, also known as web bugs[8] (This feature is available in Firefox 1.0, 1.5, and 3.0, but the UI option was absent on 2.0).[8] GNU IceCat also provides warnings for URL redirection.[8]

In version 3.0.2-g1, the certificate of a certificate authority CAcert.org has been added to the list of trusted root certificates. Concern about that decision has been raised in a discussion on the savannah-hackers-public mailing list.[20]

The GNU LibreJS extension detects and blocks non-free non-trivial JavaScript.[21]

IceCat also has functionality to set a different user agent string each for different domains in about:config. For example, setting a mobile user agent string for a desired DNS domain would make it possible to view the mobile version of a website on a desktop operating system.[22]

Licensing

Gnuzilla is available under the MPL/GPL/LGPL tri-license that Mozilla used for source code. Unlike Mozilla, IceCat's default icons are under the same tri-license.

See also

References

  1. ^ https://git.savannah.gnu.org/cgit/gnuzilla.git/commit/?id=f200ffe88821f66234591096bcbe87b0c11f8da0. {{cite web}}: Missing or empty |title= (help)
  2. ^ a b "COPYING". git.savannah.gnu.org. Retrieved 5 February 2016.
  3. ^ a b Berry, Karl (23 September 2007). "Ice Weasel". bug-gnuzilla (Mailing list). Retrieved 9 December 2008.
  4. ^ Rodriguez, Ruben (9 March 2015). "IceCat 31.5.0 release". GNUzilla.
  5. ^ a b c "Mozilla Trademark Policy".
  6. ^ Nerode, Nathanael (27 February 2004). "Mozilla Firefox's icon and trademark". debian-legal (Mailing list). Retrieved 9 December 2008.
  7. ^ Dorland, Eric (27 December 2004). "Mozilla Firefox's icon and trademark". debian-devel (Mailing list). Retrieved 9 December 2008.
  8. ^ a b c d e "Gnuzilla Homepage". gnu.org. Retrieved 4 September 2016.
  9. ^ Aelwyn, Joel (1 January 2005). "Mozilla and Trademarks". debian-legal (Mailing list). Retrieved 9 December 2008.
  10. ^ a b "Gnuzilla/IceWeasel Project Application".
  11. ^ Groening, Matt (1986). Love Is Hell. Pantheon Books. ISBN 0-394-74454-3.
  12. ^ Markham, Gervase (14 July 2005). "Ongoing Firefox (and Thunderbird) Trademark problems". debian-devel (Mailing list). Retrieved 9 December 2008.
  13. ^ Markham, Gervase (19 June 2005). "Firefox/Thunderbird trademarks: a proposal". debian-devel (Mailing list). Retrieved 9 December 2008.
  14. ^ "Summer of Code project suggestions for GNU". Retrieved 13 April 2008.
  15. ^ "Google Code - Summer of Code - Application Information". Archived from the original on 21 June 2008. Retrieved 7 August 2008.
  16. ^ https://git.savannah.gnu.org/cgit/gnuzilla.git
  17. ^ "Trisquel - Details of package icecat in belenos". Trisquel.info. Archived from the original on 18 February 2017. Retrieved 4 September 2016.
  18. ^ "Parabola GNU/Linux-libre - icecat 45.7.0_gnu1-1 (x86_64)". parabola.nu. Retrieved 13 Mar 2017.
  19. ^ "rpms/icecat". fedoraproject.org. Retrieved 13 May 2019.
  20. ^ Berry, Karl (7 October 2008). "CAcert, GNU IceCat, and savannah". savannah-hackers-public (Mailing list). Retrieved 9 December 2008.
  21. ^ "LibreJS - GNU Project - Free Software Foundation". gnu.org. Retrieved 7 June 2019.
  22. ^ "Browser detection using the user agent". MDN Web Docs. Retrieved 2020-01-25.
Wikimedia Commons has media related to GNU IceCat.
  • GNU.org, Homepage of Gnuzilla and IceCat
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