TURN on port 443 with ssl_preread_server_name not working with firefox

[brknkfr]

I just tested a few scenarios. Apparently "sharing" port 443 between nginx and coturn with the ssl_preread_server_name method is not working with two firefox browsers, both in a restricted network. It works with chrome base browsers (and jitsi meet desktop app).
I don't know exactly where the problem is. Firefox probably doesn't send server name request upon establishing a turns connection or Firefox just can't establish true turns connections, only turn.

[saghul]

I suspect Firefox doesn't use SNI when making TURNS connections...