Firefox 82 has re-introduced the old problem of header/footer being printed automatically from your built-in PDF viewer. On looking through about:config I appear to have gained printer specific settings for each of my installed printers in addition to the regular print.print_*** settings. This makes it a pain to remove all these settings and even when removed it still appears to leave a top and bottom margin setting that wasn't there before 82 Can you please revert these settings as I am sure that I am not alone in finding them annoying - especially, in my case as I save paper by printing both sides and (in some cases) reversing pages to fully utilize white space!