Neither Control-P nor the File Print command brings up the printer dialogue box in Firefox, although the print command embedded in some web pages works fine as do the print command and Control-P in MS Word. Apparently some link between the MMS print commands and Firefox has been broken and I don't know how to fix it. Can you help? The problem is recent, and may have resulted from disk defragmenting and other machine maintenance, or from a misguided effort to remove unnecessary files, although I did not knowingly dispose of any Mozilla or MMS files. I tried deleting and reinstalling Firefox 5, but that did not solve the problem.