http://roachfiend.com/archives/2005/02/07/bugmenot/

This extension will allow to log in to most sites that require registration
(NY Post, NY Times, etc)
Once you install this extension, all you have to do is go to the websites
login screen, right click on the user name box, and then select "bugmenot"
from the menu.

Bugmenot will then automatically insert a known working ID and password to
access the site. Their database is updated constantly, and I have yet to be
denied access using this extension.

Herb Sewel