Comment 2 for bug 739416

This is because the new panel in control-center is using the Exec line from the applications desktop files to set the command in gconf (which is used by gnomevfs, which some things are still using). "%u" is the URI placeholder that gio uses, but gnome-vfs doesn't understand this (and gio doesn't understand "%s"). So we don't break legacy stuff still relying on gnome-vfs, we should make it understand the "%u" placeholder too.