Printing on 1 side vs 2 option in print screen

[cdenigris]

I literally have to go to about:config to change from 1 to 2 sided and visa versa cause its not built into the print screen options when printing. Very easy to fix this!

[jscher2000]

Hi, you shouldn't have to do that. If Firefox recognizes that your printer is capable of two-sided printing, there should be a control for this in the settings panel, below the Pages per Sheet setting:

If Firefox doesn't know how to properly read this from your printer, perhaps you can file a bug report on https://bugzilla.mozilla.org/ or if you mention the printer model, perhaps someone here can submit it for you.