Read an article about Firefox in the Washington Post today which mentions a few tidbits of info such as typing in "about:config" in the address bar to access all the options one can change. Decided to type in "about:mozilla" and got this interesting page and quote:

And so at last the beast fell and the unbelievers rejoiced. But all was not lost, for from the ash rose a great bird. The bird gazed down upon the unbelievers and cast fire and thunder upon them. For the beast had been reborn with its strength renewed, and the followers of Mammon cowered in horror.

from The Book of Mozilla, 7:15

Curious.

Just did a search and there are other "about:" commands. Try "about:cache" or "about:credits" for instance. Or for the minimalist, "about:blank". Here's another good one, "about:plugins".