Mozilla Adds TLS 1.3 Support in Firefox 49 (Developer Edition)
Security Update : Mozilla engineers have activated support for TLS 1.3 in the latest version of Firefox 49, also known as Firefox Developer Edition.
TLS 1.3 is the latest version of the TLS protocol, a crucial part of running websites via HTTPS. The protocol was announced this January, when the Internet Engineering Task Force (IETF) started working on an official draft. The final version is expected to become an official RFC this summer.
As the protocol started to shape up, this past February, Mozilla’s engineers began work on integrating it into their browser. The feature was given the green light this month and is now live with the current Firefox Developer Edition.
TLS 1.3 support is not on by default, and in order to access sites using TLS 1.3 encryption, you’ll need to turn it on by typing about:config in your browser URL bar, searching for the security.tls.version.max setting and entering 4 in the Value field…. (read more)