Firebase身份验证和Firebase实时数据库都使用HTTPS在客户端和服务器之间进行通信.这意味着所有通信都通过端口443.

Firebase Authentication and the Firebase Realtime Database both use HTTPS to communicate between the client and the server. This means that all communication goes over port 443.

在可能的情况下，数据库通信在端口443上使用Web套接字.您可能要检查防火墙是否做了一些专门阻止Web套接字的操作.

The database communication uses web sockets over port 443 when possible. You might want to check if the firewall does something to specifically block web sockets.