Ghost mode for Facebook
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.com/*
*://7-edge-chat.facebook.com/*
*://8-edge-chat.facebook.com/*
*://9-edge-chat.facebook.com/*
*://www.facebook.com/ajax/chat/*
*://www.facebook.