Fps Rigidbody controller with mouse cursor?

Is it possible to use default Unity rigidbody FPS controller, with active mouse cursor? Found something but didnt worked to me:

 if (GameObject.FindGameObjectsWithTag("Player") != null)
             {
                 Cursor.visible = true;
                 Cursor.lockState = wantedMode = CursorLockMode.None;
             }