[01:41] Simone Giertz is awesome. That being said, I read this interview and became fond of the idea that the Internet is like Narnia. So I saved this icon (I know, I know -- not exactly a wardrobe) to /usr/lib/firefox/browser/icons/mozicon128.png
and now have the Internet/Narnia just there, when I click on the sort-of-wardrobe. (By the way, I'm feeling the urge to point out that not only Narnia, but also this awesome world was reached by wardrobe. If you get the chance - play the first two games.)
Update: I also altered /usr/share/applications/firefox.desktop and set a new name and comment there.