Firefox new pdf viewer (pdf.js) print problem

If you are using pdf to generate reports, than probably your users have some problems with newer versions of firefox (starting with v19). A new build in viewer doesn't handle printing quite well.
I'll suggest you to switch back to Adobe Acrobat instead till the problem is fixed.

To do that just:

1. Select Options
2. Select the Applications panel.
3. Find Portable Document Format (PDF) in the list.
4. Click on the drop-down arrow in the Action column for the above entry and select the use Adobe Acrobat (in Firefox) .
   
   
    
5. Click OK to close the Options window