Dear all.
I am follow steps of mod_verto.
I have installed FS 1.6 on Debian Jessie

When i use Chrome i connected to wss fine. But when i try from Firefox i can't to connect to wss.
Firebug show me:

Firefox can not establish connection to the server :

wss://ssw.opendata.cl:8082/.

I hope you could help me.

Regards