In Security Last updated:
Share on:
Cloudways offers managed cloud hosting for any size business to host a website or complex web applications.

Procedure to enable TLS 1.3 in your favorite browsers

Are you taking advantage of TLS 1.3 enhanced performance and security?

TLS 1.3 draft working version was released in 2017 and glad to see many websites have adopted this.

tls-13-market-share

If you are a website owner, then you can consider enabling it today. Check out my previous article about how to enable TLs 1.3 in Apache, Nginx and Cloudflare.

But how about client-side – browsers?

Chrome starting from 63 version and Firefox 61 have started supporting TLS 1.3, and if your browser doesn’t support this yet, then you are missing the performance and privacy features.

tls-13-support-matrix

Enabling TLS 1.3 in Chrome

  • Launch Chrome
  • Type the following in the address bar and hit Enter
chrome://flags/#tls13-variant

Ensure it’s not disabled. You can select Default or Enabled.

chrome-tls-13

  • Relaunch Chrome for setting to be effective

Enabling TLS 1.3 in Firefox

  • Launch Firefox
  • Type about:config in the address bar and hit Enter
  • Start typing tls.version in a search, and you should see the following

firefox-tls-13

  • Ensure security.tls.version.max value is 4
  • If not, double-click on it to modify to 4.

Enabling TLS 1.3 in Safari

  • Open the terminal and become a root

sudo su - root

  • Type the following command and hit Enter
defaults write /Library/Preferences/com.apple.networkd tcp_connect_enable_tls13 1
  • Relaunch Safari to enjoy the benefits.

Browser Test for TLS 1.3

How do you ensure your browser supports the latest TLS version? There are a few tools you can use it.

Just hit the following page to test it.

Browser experience security check by Cloudflare – this is how a result looks when a browser supports it.

browser-check

How’s My SSL – check SSL/TLS protocol compatibility, known vulnerability support.

hows-my-ssl

I hope this quick instruction help you to enable the latest TLS 1.3 version in Chrome and Firefox.

Share on:
  • Chandan Kumar
    Author
    Chandan Kumar is a seasoned technology enthusiast and entrepreneur passionate about empowering businesses and individuals globally. As the founder of Geekflare, a leading technology publication, Chandan has spearheaded the development…

Thanks to our Sponsors

More great readings on Security

Power Your Business

Some of the tools and services to help your business grow.
  • The text-to-speech tool that uses AI to generate realistic human-like voices.

    Try Murf AI
  • Web scraping, residential proxy, proxy manager, web unlocker, search engine crawler, and all you need to collect web data.

    Try Brightdata
  • Monday.com is an all-in-one work OS to help you manage projects, tasks, work, sales, CRM, operations, workflows, and more.

    Try Monday
  • Intruder is an online vulnerability scanner that finds cyber security weaknesses in your infrastructure, to avoid costly data breaches.

    Try Intruder