Probably another conflict with gnome 3.
I was just fiddling around with some gnome packages, and my mimeapps.list got messed up. Removed most of the gnome-stuff and had to do all the settings in mate's preferred applications tool (mate-default-applications-properties) again, but after this everything worked as expected.
Probably another conflict with gnome 3. applications- properties) again, but after this everything worked as expected.
I was just fiddling around with some gnome packages, and my mimeapps.list got messed up. Removed most of the gnome-stuff and had to do all the settings in mate's preferred applications tool (mate-default-