Firefox - Make use of operating system print options

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Firefox posses its own Print Options dialog (File > Print), but if you want to make use of default OS settings:
Open Firefox:
  • In the address bar type "about:config" and press Enter.
  • In the Filter field search for "print.extend_native_print_dialog".
  • Double-click this entry to change its value to False
  • Close the about:config window.

As shown below the difference between the 2 print dialogs:
Firefox print options:

Windows print options:

Firefox - Never save print settings
Firefox -Disable printing from the preview window