Ok, I always preferred Mindi anyway!
Found this here.
Nice stuff about the Mork file format Mozilla is using for some stuff. Nice if you like pain, that is.
Here's JWZ's original blog specially read the comments.
Here's the associated bugzilla entry.
Just because I'm whimsical, Mindi is a Linux distribution, used by Mondo.
And just because I am a free software guy:
I have no idea what Konqueror does about its history file, but it seems Mozilla is now storing mail in Mork format? That's gonna hurt if you ever want to import it from some other app!