I've the following problem: I use a special font which is installed on my system. It works fine on my screen-view but in the print preview Firefox just uses my standard font.
As I said the font is installed and I'm not using any fancy CSS3 tricks.
Any ideas?
After a frustrating day searching the internet and rewriting my code I finally found the answer! You need to disable Firefox' hardware acceleration!
Just follow these steps:
Tools > Options > Advanced > General Tab > Disable hardware acceleration
Restart Firefox
I found it on this page.