Fuel Base Controller Class
The Fuel_base_controller Class should be used for CMS controllers. It is in charge of initializing the Fuel_admin class which is used to display the various aspects of the CMS. Below is an example of how to use it for your own CMS controllers.
Example
require_once(FUEL_PATH.'/libraries/Fuel_base_controller.php');
class My_module_controller extends Fuel_base_controller {
...