I think the developer who is able to fix this is Roland Mainz (http://www.nrubsig.org/people/gisburn/) who quit working on Mozilla a couple of years ago. Maybe Canonical could hire him for the task of improving Mozilla Firefox's printing and its CUPS integration?
This problem currently has little chances of getting fixed, since the printing subsystem in Mozilla Core used by Firefox is practically unmaintained.
See:
https:/ /bugzilla. mozilla. org/show_ bug.cgi? id=284925 /bugzilla. mozilla. org/show_ bug.cgi? id=130075
https:/
I think the developer who is able to fix this is Roland Mainz (http:// www.nrubsig. org/people/ gisburn/) who quit working on Mozilla a couple of years ago. Maybe Canonical could hire him for the task of improving Mozilla Firefox's printing and its CUPS integration?