Debian/Ubuntu Gnome: Restoring Nautilus as default folder viewer opener
UPDATE 2016-10-21: Consider the newer article on the same topic, which uses xdg-mime. So, you installed Thunar, PCManFM, Dolphin or Konqueror and now when you doubleclick on a folder on your Gnome desktop (techically, nautilus desktop) or choose a folder in your Gnome panel, you don't get Nautilus? For all files you can choose the [...]