Enabling TLS 1.3:
Microsoft Edge: Open Internet Options, go to Advanced > Security, enable Use TLS 1.3.
Chrome: Open Chrome, enter Chrome://flags, enable specific TLS options, and relaunch.
Firefox: Open Firefox, enter about:config, set values for TLS, and relaunch.
Viewing TLS Version:
Microsoft Edge & Chrome: Open or relaunch, go to Menu > More Tools > Developer Tools > Security.
Firefox: Relaunch, go to Menu > More Tools > Web Developer Tools > Security.