He's probably thinking of "IceWeasel" which was a rebranded firefox a linux distro (Fedora maybe?) was shipping due to some sort of copyright/licensing quirk.
Debian actually. It's now GNU IceCat though. The reason they changed the name is because Debian backports some security features to Firefox, and Mozilla denies the use of the Firefox branding to unofficial builds of the software.
Yikes, good call. I confused GNU IceCat[1], which was formerly GNU Iceweasel with Debian's rebranding of Firefox, which is still known as Iceweasel[2].