Mozilla Printing

Headers & Footers
Both Firefox and Thunderbird can have their printing configurations altered through the 'about:config' page.

Printing Problems
Not Printing To Default Printer: http://arstechnica.com/civis/viewtopic.php?f=11&t=224248

No Option To Select A Printer: http://ubuntuforums.org/showthread.php?t=205050