Problem with sslechoserver

[sven_s_ed]

Good day
I'm witing some application based on QWebServer and have several problems

I built QT (version 5.3.2) with ssl support (version 1.0.1j)
(MS Visual stodio 9.0)

After that I built sslechoserver and sslechoclient from qtwebsockets/examples/websockets

What I have

Step one: start sslchoserver (port 1234) with native localhost.sert and localhost.key and got
":SSL Eche Server listening on port 1234"

Start sllechoclient: ("wss://localhost:1234") and got
at server: Cilent connected
at client: Hello World
All work, nice

But when I want to connect to server from browser (Firefox 33) using native sslscoketclient.xml
or http://www.websocket.org/echo.html ("wss://localhost:1234")
I got "ERROR: undefined"
(I registered localhost.sert in Firefox)

I have no idea
NOTE 1: sslsocketclient works with "wss://echo.websocket.org" works properly
NOTE 2: sslechoserver andsslecoclient don't work (client does not connect to server) if I change ports to 443 -(
Can you help me ?
Thank