In Windows, that thermal printer was shown as the last printer in the list. I'm sure if I add that printer back in it'll start using that paper size again. I very rarely use that printer from this computer so I just removed that printer from my printers and Firefox now prints correctly. What I found is that the paper size was the size used for a thermal printer which was on the network. But it might also happen when I print to the PDF printer driver from other applications. The paper size change comes after I print to a PDF in Firefox. Yes, that I can tell all that is changed is the paper size. (BTW, I was unable to access this bug reporting page using firefox. It's changing the paper size to the thermal printer which is the first printer listed, but it sets that size of paper REGARDLESS of what other printer we are using. The only way to fix it is to copy over a back up of the prefs.js file or reset everything.Īfter it prints to a PDF, it should use whatever print driver and properties set for that printer.

However, it corrupts the prefs.js file so that EVERY other print job (not a PDF print job) now prints into a box 4.75' x 2.5' wide. User Agent: Mozilla/4.0 (compatible MSIE 8.0 Windows NT 5.1 Trident/4.0.

Nitro pdf creator not working