IceCat browser

This page was last updated at: May 26, 2026

IceCat is a Desktop web browser and supports the Linux, macOS, Windows operating systems. It's been developed for about 20 years, but there hasn't been anything since 2025.

GNUzilla is the GNU version of the Mozilla suite, and GNU IceCat is the GNU version of the Firefox browser. Its main advantage is an ethical one: it is entirely free software.

About IceCat

Browser URL www.gnu.org/software/gnuzilla/
Development Status Idle
The browser doesn't seem regularly developed, but a new version might still be released at some point
Launched 2005
August 2005, GNUzilla project adopted "GNU IceWeasel" as the name for a distro of Firefox that contained no non-free plugins
Last Updated 2025
Operating Systems Linux, macOS, Windows
Device platform Desktop
Rendering Engine Gecko
Source Code Repository
Also known as GNU IceCat
Formerly known as IceWeasel
Wikipedia Article https://en.wikipedia.org/wiki/GNU_IceCat
Status info icecatbrowser.org
I honestly can't figure out the relationship between this IceCat domain and the GNU IceCat pages.
Forum Post
2013-04-26
 Are Icecat and Iceweasel different projects?
Forum Post
2023-01-02
 Anyone using Icecat? is it abandoned?

Check out other browsers similar to IceCat

These web browsers have something in common with IceCat, you could test them out and compare them.