Below we will see how you can enable TLS 1.3 support (Security Layer Security) in Firefox and Google's Chrome.
The Transport Layer Security, or TLS for short, is an encryption protocol that you use for secure communication between computers. The current version of TLS is 1.2 while TLS 1.3 is currently available as a draft.
TLS 1.3 is based on TLS 1.2 but provides significant security and privacy protection compared to TLS 1.2 that web browsers support by default.
Let's see how we can enable TLS 1.3 support in Firefox and Chrome
Both Firefox and Chrome support TLS 1.3, but the new Transport Layer Security version is not enabled by default. The main reason for this is probably that it is still only available as a draft (a draft or imagine something like a beta)
One of the first things we need to do is see which TLS and SSL protocols the browser we use supports.
We can do this easily by visiting SSL Labs and from there the “My Client” page which checks the capabilities of the browser you are using.
The page will show you all the protocols supported by your browser, checks whether it is vulnerable to certain known attacks, lists the supported encryption suites, protocol details and how the browser handles mixed content.
If you open the page with Chrome or Firefox you will see a “no” (no) next to TLS 1.3
Enable TLS 1.3 in Firefox
Firefox users can enable TLS 1.3 support in Firefox by following the instructions below: (note that the Nightly version already supports TLS 1.3, while the Firefox Stable will need to be configured to support it).
Open the page: about:config in the Firefox address bar.
Confirm that you will be careful on the warning screen (because you will lose the warranty).
The Firefox configuration editor will open.
Search for security.tls.version.max
Change the value to 4 by double-clicking on it.
Enable TLS 1.3 in Chrome
Google Chrome users can also enable TLS 1.3 in their browser. For some browsers that are based on Chromium, such as Vivaldi, you can follow the same instructions.
Open the page chrome://flags/#ssl-version-max in the browser address bar.
Click the menu and set the value to TLS 1.3.
Restart the browser.
That was…
