Printer for USB Firefox

[JAS]

I am running SM 2.4.9 and have several portable browsers on a USB drive. 
When I load Firefox 82.0.2 it will not connect to my default printer, 
Chrome and Edge and Opera do. What needs to be done? I never done 
anything to the other Browsers, the Firefox shower my PDF Printer Lite 
from PDF Exchange my default PDF program.

JAS
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