The GNU version of Firefox is called IceCat. I don’t know what an Ice Cat is, other than a common name for a hockey team.
The Wolverine is also known as the Glutton. I probably knew that at one time, then forgot until I came across some photos of a en-zooed wolverine in a stock photo library I use. (I’ve had 15 credits to spend for some time, but haven’t used stock much or found anything compelling.)