Upgraded cups - no cups printer in firefox after the upgrade

[Kenneth Hatteland]

When updating the cups port my cups networked printer tends to fall out 
from firefox, epdfview etc.
Last time I found a webpage with some cups related ports that had to be 
rebuilt for it to work. But I forgot to bookmark it. Now I can not find 
this page and I can`t piece together which ports it was by browsing in 
/ports/print

Is there anyone that could drop me a hint ;)

Kenneth, Norway