Wemos D1 mini (with embedded ESP8266 module) can not connect to Firebase

How can I change my Firebase account using HTTP only?

I can't find.

Can u help me ?

No, but ask the supplier (I think it's Google). I guess they have a forum to ask such questions. I thought to remember that Google announced that it will offer it's services in the future only by HTTPS but I'm not sure about that.