Mozilla Firefox breaks KParts

[Temlakos]

Well, partly, anyway. After the latest upgrade of Mozilla Firefox, PDF 
files, loaded into a tab, will not print. Nothing comes out of the print 
device except blank pages.

But if I download a PDF file, save it, open it with the Adobe Reader 
application, and print from there, I get a readable printout, just as I 
expect.

Where do I file the bug, and against what?

Temlakos