


I consider this a trap because it resets Firefox to again accept the older, less secure TLS versions (1.0 and 1.1). Do you want the default settings to be restored?" along with the blue "Restore default settings" button. Specifically, the note that "It looks like your network security settings might be causing this. And, annoyingly, the message does not say what unsupported version it encountered.įinally, the bottom of the message is a trap. There are three problems, however, with this Firefox error message.įor one thing, TLS 1.0 and 1.1, which the website is using, is indeed supported by Firefox-its just that a particular instance of the browser was configured not to use them. The security protocol it refers to is TLS. Error code: SSL_ERROR_UNSUPPORTED_VERSION Peer using unsupported version of security protocol. An error occurred during a connection to.
