In Mozilla 1.1 (own build from mozilla.org source tarball), Mozilla ignores the print command and paper size set in the user's prefs.js file and defaults to Letter and the "lpr" command. We set it to A4 and "lp" here. Checking the prefs.js file shows that it still says the correct values there. Only solution is to select Properties when you want to print and change it -- which is a bad solution for normal users. hened@styr12:~/.mozilla/hened/xxxxxxxx.slt> cat prefs.js | grep "print.printer" user_pref("print.printer_PostScript/default.print_command", "lp a${MOZ_PRINTER_NAME:+'-P'}${MOZ_PRINTER_NAME}"); user_pref("print.printer_PostScript/default.print_edge_bottom", 4); user_pref("print.printer_PostScript/default.print_edge_left", 4); user_pref("print.printer_PostScript/default.print_edge_right", 4); user_pref("print.printer_PostScript/default.print_edge_top", 4); user_pref("print.printer_PostScript/default.print_paper_height", " 11.65"); user_pref("print.printer_PostScript/default.print_paper_name", "A4"); user_pref("print.printer_PostScript/default.print_paper_size_type", 1); user_pref("print.printer_PostScript/default.print_paper_size_unit", 0); user_pref("print.printer_PostScript/default.print_paper_width", " 8.27"); Bug URL points to a PNG of the properties dialog showing other values than in the prefs.js file. Worked in Mozilla 1.0.

*** This bug has been marked as a duplicate of 166217 ***

verified.