FireChat, a point-to-point chat tool that does not require a network, will add a decentralized login function that supports Blockstack. Users can log in with a Blockstack account and use FireChat. FireChat is a free peer-to-peer chat tool. Users can send and receive information when there is no direct Internet connection. FireChat has experimented with centralized and centralized authorization in the past. This time, it will explore the blockchain-based login function. FireChat is used in scenarios without Internet access or involving privacy. Blockstack said that FireChat has millions of registered users worldwide and has been reported by media CNN, BBC and Telegraph. Currently, Blockstack’s login function has been used by some FireChat users, and more extensive support will be provided in the coming months.