Selbst auf schier seriösen Seiten setzt er sich fort, der “Kampf”, dezent in netten kleinen ironischen Sticheleien im Umkehrschluss….

Windows users: If you know how to create a file, just skip this section. Before you can create the file, you must make sure that you can see the file type extensions in Windows. Start Explorer (just click on the My Computer icon on your desktop) and select Tools > Folder Options…. Click the View tab and uncheck the Hide extensions for known file types option. Now, go to your profile folder and select File > New > Text Document. The default name New Text Document.txt should be displayed. Change the name to user.js (click Yes on the file type warning that appears).

Linux users: I assume that you know how to create a file if you’re running Linux. Just create user.js in your profile folder.

Quelle: http://www.mozilla.org/support/thunderbird/edit#user