Set Up PIN Printing for Firefox

  1. In the File menu, click Print.
  2. Click Print Using the system dialog in the More settings section.
  3. Select the desired printer from the drop-down list. Go to Printer Options > Job Storage, and click the information icon on the right  
  4. Click Personal Job in the Mode drop-down list. Check the Use PIN to Print checkbox. Enter a 4-digit PIN to protect your print job. Then click OK.  
  5. Click Print to send your print job using the configured PIN.