On 2013-06-12 11:01, Albert Shih wrote: > Hi > > I'm unable to print from firefox/chrome/opera so that really s***.. > > When I try to print something in firefox I got this message > > (firefox:45435): Gtk-WARNING **: Unknown paper size A4 Do you have for example print/libpaper, print/papersize-default-a4 or any other paper size stuff installed.