Issue

• How can TLS fallback mode or whitelists be configured in Firefox for servers that are TLS version intolerant?
• Firefox is not able to connect to some websites with older TLS versions (TLS intolerant server side)
• Firefox disconnects with incompatible versions of TLS
• Firefox TLS handshakes do not negotiate for backwards compatibility on TLS intolerant configured webservers
• Firefox does not retry connections if the initial attempt with TLS 1.2 failed on a TLS intolerant webserver
• Firefox will only permit the use of the older TLS versions 1.1 and 1.0 if the server uses the TLS handshake protocol to negotiate these versions.

• Automatic fallback for Firefox 38 is disabled

• Error when connecting to website:

Secure Connection Failed. The connection to HOSTNAME was interrupted while the page was loading.