This is because GNOME Terminal doesn't export its menus on D-Bus. We have unity-gtk-module which does it for legacy menubars, but it gets confused by the "Show Menubar" setting sometimes. I've started working on this upstream (see the linked bug).
This is because GNOME Terminal doesn't export its menus on D-Bus. We have unity-gtk-module which does it for legacy menubars, but it gets confused by the "Show Menubar" setting sometimes. I've started working on this upstream (see the linked bug).