Enable TLS 1.3 in Browsers for Enhanced Security (2024)

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Arun KL

February 13, 2024

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In modern-day security, servers have become more secure. Hackers have leaned more towards the clients. Studies also reveal that client-side attacks are growing faster than server-side attacks. There is a reason for this. Clients are more vulnerable and easy to compromise. Now, it is highly important to understand the importance of client-side (web browser) security and learn how to be safe from all such attacks. TLS is one of the keys when it comes to browser security. In this article, we are covering how to enable TLS 1.3 in standard web browsers.

What Is TLS?

TLS stands for Transport Layer Security. It’s asecurity protocoldeveloped to provide the greatest security for the data transferred between a web browser (Client) and a web server (Server) over the internet. TLS uses asymmetric encryption techniques to servers HTTPS to provide encrypted channels and protect from cyber attacks.

Why You Should Enable TLS 1.3?

When ITEF published TLS 1.3 in August 2018 under RFC 8446 after a decade. It has gotten an impressive improvement in terms of security, speed, and performance over its previous version TLS 1.2.

  1. TLS 1.3provides modern ciphers and key-exchange algorithms, withforward secrecyas a baseline.

  2. Removal of older, less-secure ciphers and key exchange methods: including the following: MD5, SHA1, RC5, DES, 3DES, AES CBC, Arbitrary Diffie-Hellman groups, and EXPORT-strength ciphers., as well as an overall reduction in the complexity of the protocol.

  3. Most of the handshake messages are encrypted in TLS 1.3 compared to its predecessor TLS 1.2. Encryption will kick off right after the Server Hello message inTLS 1.3 handshake.

  4. The handshake process was reduced from two round trips inTLS 1.2to one round trip in TLS 1.3. This has given a lead in terms of overall speed. According to IETF, TLS 1.3 is 25% to 50 % faster than TSL 1.2.

TLS Supported Browser Versions:

Enable TLS 1.3 in Browsers for Enhanced Security (6)Enable TLS 1.3 in Browsers for Enhanced Security (7)

Multiple browsers versions that support TLS 1.3

If you pay some attention to the above picture, you can figure out which browsers have started supporting their support to TLS 1.3. As on February 2021:

  1. Internet Explorer doesn’t have official support for TLS 1.3.

  2. Edge started supporting TLS 1.3 from version 79.

  3. Firefox started giving support from version 63.

  4. Chrome started support to TLS 1.3 from version 70.

  5. At last, Safari has started supporting TLS 1.3 from its 12.2.

If you find the release dates of all these supported versions, You will say, most of the web browsers started supporting TLS 1.3 from their October 2018 revisions. So, now most of the popular web browsers have been supporting TLS 1.3, it’s perfectly all right not to give much attention to this part. Let’s continue our journey to explore how to enable TLS 1.3 in standard web browsers.

Enabling TLS 1.3 in Chrome

  1. Fire up the Chrome

  2. Type “chrome://flags/” in the address bar.

  3. Type “TLS” in the search box.

  4. Set TLS to Default or Enabled.

  5. Relaunchthe browser.

Enable TLS 1.3 in Browsers for Enhanced Security (8)Enable TLS 1.3 in Browsers for Enhanced Security (9)

‘Chrome’settings to enable TLS 1.3

Enabling TLS 1.3 in Firefox

  1. Open Firefox.

  2. Type “about:config” in the address bar.

  3. Accept theRisk and Continue.

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Firefox throwing a warning message before entering into configuration mode

4. Hit on “Show All

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Click onShow Allto view the entire preferences in ‘Firefox

5. Write “tls.version” inside the search box.

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Search and edit the TLS version in ‘Firefox

6. Ensuresecurity.tls.version.maxvalue is4

7. If not, double-click on it to modify it to 4.

Enabling TLS 1.3 in Safari

  1. Open the terminal and become a root.

sudo su — root

  1. Type the following command and hit Enter.

defaults write /Library/Preferences/com.apple.networkd tcp_connect_enable_tls13 1

Enabling TLS 1.3 in Edge

  1. Launch the Edge browser.

  2. Type“chrome://flags/” in the address bar.

  3. Type “TLS” in the search box.

  4. Set TLS to Default or Enabled.

  5. Restartthe browser.

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‘Edge’settings to enable TLS 1.3

Enabling TLS 1.3 in Internet Explorer

  1. Hit theWin + rkey to open theRun utility.

  2. Type “inetcpl.cpl” and hit Enter key.

Enable TLS 1.3 in Browsers for Enhanced Security (18)Enable TLS 1.3 in Browsers for Enhanced Security (19)

‘Run’utility to open Internet properties.

3. Go to the Advanced tab in theInternet Propertieswindow. Scroll down till you see TLS 1.3 check box. Click on the check box and hit the ‘Ok’ button.

Enable TLS 1.3 in Browsers for Enhanced Security (20)Enable TLS 1.3 in Browsers for Enhanced Security (21)

‘Advanced’tab under ‘Internet properties’to enable TLS 1.3

That’s all. Now you have learned how to enable TLS 1.3 in standard web browsers.

Thanks for reading this article. Please visit our site to read more and more interesting articles.

  • How to Enable TLS 1.2 and TLS 1.3 on Windows Server?

  • How to Disable TLS 1.0 and TLS 1.1 on Your Nginx Server?

  • How to Enable TLS 1.2 and TLS 1.3 via Group Policy

Enable TLS 1.3 in Browsers for Enhanced Security (22)Enable TLS 1.3 in Browsers for Enhanced Security (23)

Arun KL

Arun KL is a cybersecurity professional with 15+ years of experience in IT infrastructure, cloud security, vulnerability management, Penetration Testing, security operations, and incident response. He is adept at designing and implementing robust security solutions to safeguard systems and data. Arun holds multiple industry certifications including CCNA, CCNA Security, RHCE, CEH, and AWS Security.

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Enable TLS 1.3 in Browsers for Enhanced Security (2024)

FAQs

Enable TLS 1.3 in Browsers for Enhanced Security? ›

In a nutshell, TLS 1.3 is faster and more secure than TLS 1.2. One of the changes that makes TLS 1.3 faster is an update to the way a TLS handshake works: TLS handshakes in TLS 1.3 only require one round trip (or back-and-forth communication) instead of two, shortening the process by a few milliseconds.

How do I enable TLS 1.3 on my browser? ›

​​ Enable TLS 1.3 in the browser
  1. Open Chrome Developer Tools.
  2. Select the Security tab.
  3. Reload the page (Command-R in macOS, Ctrl-R in Windows).
  4. Select the site under Main origin.
  5. Under Connection, confirm that the protocol is TLS 1.3.
Jun 27, 2024

Should TLS 1.3 be enabled? ›

In a nutshell, TLS 1.3 is faster and more secure than TLS 1.2. One of the changes that makes TLS 1.3 faster is an update to the way a TLS handshake works: TLS handshakes in TLS 1.3 only require one round trip (or back-and-forth communication) instead of two, shortening the process by a few milliseconds.

How do I know if TLS 1.3 is enabled on my website? ›

For Chrome
  1. Open the Developer Tools (Ctrl+Shift+I)
  2. Select the Security tab.
  3. Navigate to the WebAdmin or Cloud Client portal.
  4. Under Security, check the results for the section Connection to check which TLS protocol is used.
Jul 5, 2024

How do I enable TLS 1.3 on my web server? ›

Enable TLS 1.3 in Apache
  1. Login to your Apache web server.
  2. Locate ssl. conf file under these directories.
  3. /etc/httpd/conf.d/
  4. /etc/apache2/mods-available/
  5. Edit the ssl. conf file using your choice of text editors. ...
  6. The default configuration may look like this:
  7. SSLProtocols — all +TLSv1 +TLSv1.1 +TLSv1.2.
  8. Append +TLSv1.
Oct 1, 2022

How to enable TLS 1.3 on Windows 10? ›

Open the 'Run' Windows by inputting 'Win + R' and type 'regedit' to execute 'Registry editor'. Browse to 'Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.3\Client' and double-click on 'Enabled'. In the 'Value data' field, change the value to '1' and select 'OK'.

How do I enable TLS on Google Chrome? ›

Google Chrome
  1. Open Google Chrome.
  2. Click Alt F and select Settings.
  3. Scroll down and select Show advanced settings...
  4. Scroll down to the Network section and click on Change proxy settings...
  5. Select the Advanced tab.
  6. Scroll down to Security category, manually check the option box for Use TLS 1.1 and Use TLS 1.2.
  7. Click OK.
Nov 1, 2023

What TLS should be enabled? ›

Simply put, it's up to you. Most browsers will allow the use of any SSL or TLS protocol. However, credit unions and banks should use TLS 1.1 or 1.2 to ensure a protected connection. The later versions of TLS will protect encrypted codes against attacks, and keep your confidential information safe.

How does TLS 1.3 affect network based security? ›

TLS 1.3 has fewer handshake messages to initiate the connection between devices, which are also encrypted. This accelerates the setup process but also limits the information visible to security devices that do not carry out decryption.

What are the security issues with TLS? ›

The most common SSL and TLS issues we see are:
  • Implementing self-signed certificates.
  • Certificate validity expiration.
  • Outdated OpenSSL versions.
  • Counting on default settings and no personalization.
  • Incorrect trust chains.
  • Misconfigured TLS and SSL.

How do I check my browser TLS version? ›

For Google Chrome & Microsoft Edge browser: o In the Windows menu search box, type 'Internet options'. o In the Internet Properties window, on the 'Advanced' tab, scroll down to the 'Security' section. o Make sure the 'User TLS 1.2' checkbox is checked.

How to check if TLS is enabled? ›

-Press the Windows key + R to start Run, type regedit, and press Enter or click OK. -If you can't find any of the keys or if their values are not correct, then TLS 1.2 is not enabled.

Are SSL and TLS the same? ›

TLS is the direct successor to SSL, and all versions of SSL are now deprecated. However, it's common to find the term SSL describing a TLS connection. In most cases, the terms SSL and SSL/TLS both refer to the TLS protocol and TLS certificates.

How do I enable TLS on my website? ›

Open the Tools menu (click on the tools icon or type Alt - x) and select Internet options. Select the Advanced tab. Scroll down to the bottom of the Settings section. If TLS is not enabled, select the checkboxes next to Use TLS 1.0, Use TLS 1.1, and Use TLS 1.2.

How do I enable or disable TLS 1.3 in Windows 11? ›

Normally it is possible to enable it via the Internet browser properties:
  1. In Windows computer, start the Run prompt (Win + R) and type 'inetcpl. cpl', then press the Enter key.
  2. The Internet Properties window will be opened. ...
  3. Under the security section, check the box TLS 1.3.
  4. Apply the changes and restart the browser.
Sep 18, 2023

How do I enable TLS in Internet options? ›

Google Chrome
  1. From the Start Menu > Open 'Internet Options' Options > Advanced tab.
  2. Scroll down to the Security category, manually check the option box for Use TLS 1.2 and un-check the option box for Use TLS 1.1 and Use TLS 1.0.
  3. Click OK.
  4. Close your browser and restart Google Chrome.
Oct 21, 2023

How do I change my browser TLS version? ›

Open the Tools menu (click on the tools icon or type Alt - x) and select Internet options. Select the Advanced tab. Scroll down to the bottom of the Settings section. If TLS is not enabled, select the checkboxes next to Use TLS 1.0, Use TLS 1.1, and Use TLS 1.2.

How do I check my browser TLS compatibility? ›

The easiest way to check the TLS version of a website is to use a TLS checker like https://www.ssllabs.com/ssltest. While Chrome no longer lets you check a website's TLS version in Developer Tools, the version is still easy to find in Firefox and Microsoft Edge.

How do I enable TLS 1.2 and 1.3 on Windows Server? ›

Method 1 : Enable TLS 1.2 and TLS 1.3 manually using Registry
  1. Open 'Run', type 'regedit' and click 'OK'.
  2. In Registry Editor, navigate to the path : HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols. ...
  3. Rename the registry key as 'TLS 1.2'.
Nov 14, 2023

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