"Hello! I am pleased to announce the new version for the GNU IceCat web browser [...] This new version is based on the new Firefox 3.0.1 source code that fixes some bugs present in the previous 3 release. In addition a support for the standard X -geometry option was added in IceCat..."

Learn how to create a language extension for IceCat (and probably also for Firefox and other Firefox-based browsers).

"...After some research, I found IceCat.

IceCat is “the GNU version of the Firefox browser.” Basically, the GNU guys took Mozilla’s code, and compiled it without using the “proprietary” parts, meaning the Logo and the name, among other things..."

"Hello, I uploaded the new IceCat version based on Firefox 3.0.4 here: http://gnuzilla.gnu.org/download/icecat-3.0.4-g1/ ..."

"GNU IceCat 3.0.8-g1 has been released! GNU IceCat is the GNU version of the Mozilla Firefox browser. This new version includes all the changes made in Firefox 3.0.8..." -- See also Free Addons for IceCat

"GNU IceCat, formerly known as GNU IceWeasel,[1] is a web browser distributed by the GNU Project. IceCat is a fork of Mozilla Firefox which is made entirely of free software..."

We are pleased to announce the first official release of GNU IceCat, the GNU version of the Mozilla Firefox web browser. You can get IceCat from http://ftp.gnu.org/gnu/gnuzilla/ and all GNU mirrors (see http://www.gnu.org/order/ftp.html)..."

"I am happy to announce the new GNU IceCat version. GNU IceCat is the GNU version of the Mozilla Firefox browser. This new version includes the changes made in Firefox 3.0.6 ..."

"I am pleased to announce the new version for the GNU IceCat web browser. GNU IceCat is based on the Mozilla Firefox source code. While the basic Mozilla Firefox source code is free software, and we thank them for their significant contributions to the community, some non-free files are distributed in the Firefox source tree, and Firefox can recommend non-free plugins. IceCat is entirely Free Software..."