I've just upgraded by desktop machine to Ubuntu 11.04 which has firefox 4.
On my QNAP i run 2 web sites which are only accessible through SSL, (Port 443) one site is a Virtual Host.
The site which is a Virtual Host (https://teambetamax.dnsalias.com/ receives this error
Secure Connection Failed
An error occurred during a connection to teambetamax.dnsalias.com.
Renegotiation is not allowed on this SSL socket.
(Error code: ssl_error_renegotiation_not_allowed)
Please contact the web site owners to inform them of this problem. Alternatively, use the command found in the help menu to report this broken site.
I've tried this on a couple of machines and this always happens with firefox 4, site is fine on firefox 3 and safari browsers.