Method 1: Block requests to these urls Hide online status *://edge-chat.facebook.com/* *://0-edge-chat.facebook.com/* *://1-edge-chat.facebook.com/* *://2-edge-chat.facebook.com/* *://3-edge-chat.facebook.com/* *://4-edge-chat.facebook.com/* *://5-edge-chat.facebook.com/* *://6-edge-chat.facebook.