For Firefox, there's even a simpler solution if you have the possibility to alter the prefs of the clients (I've done this for a kiosk-mode application): In your firefox, browse to "about:config" and right click to add a new *boolean* value named "always_print_silent" (true). Done.
Both solutions will print to the default printer of the system. In FF, you can change the printer with the "print_printer" value.
HTH, Max
por favor me aclaran este post sobre imprimir sobre Firefox, que no lo entiendo y tengo la necesidad de imprimir directamente a la impresora por default, sin que se habilite la pantalla de impresion.
gracias