TLS v1.3

Enable TLS v1.3 in all browsers

Google Chrome (version: 63+ ):

• Launch Chrome
• Type in the address bar: chrome://flags/#tls13-variant
• Check for Enabled (Final)

Opera:

• Launch Opera
• Type in the address bar: opera://flags/#tls13-variant
• Check for Enabled (Final)

Firefox (version: 61 +):

• Launch Firefox
• Type in the address bar: about:config , search for: tls.version.max and ensure the value is set to 4.

Safari:

• Launch Terminal and issue following command: sudo defaults write /Library/Preferences/com.apple.networkd tcp_connect_enable_tls13 1
• and relaunch Safari.