Why cant I print the PDF using firefiox

Can not print pdf file with firefox 29.0 pdf preview plugin. Why? Chosen solution: The 29.0.1 firefox solved my problem!

Please check: Firefox---> Preferences (options)---->applications tab---->Portable document Format (PDF)----->Preview in firefox

For more information/ source:https://support.mozilla.org/en-US/questions/998987