You used to be able to connect to facebook messenger via XMPP. Combined with this permission, it would have let you retrieve historical messages and add persis

You used to be able to connect to facebook messenger via XMPP. Combined with this permission, it would have let you retrieve historical messages and add persistence among alternative clients. https://news.ycombinator.com/item?id=9266769 https://news.ycombinator.com/item?id=9266769