Users cannot modify a menu if the following conditions are true:
A vfolder information file that corresponds to the menu is present in the /etc/gnome-vfs-2.0/vfolder directory.
The vfolder information file has the same name as the URI location that corresponds to the menu.
The user permissions for the vfolder information file are set to read only.
To configure a menu so that users cannot modify the menu, perform the following steps:
Create a vfolder information file for the menu that you want to configure in the /etc/gnome-vfs-2.0/vfolder directory.
Give the vfolder information file the name of the URI location that corresponds to the menu that you want to configure. For example, to configure the Applications menu, create a vfolder information called applications.vfolder-info in the /etc/gnome-vfs-2.0/vfolder directory.
Set the permissions on the vfolder information file to read only.