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Alert ID : INFO3299

Last Modified : 04/19/2019

Enabling TLS 1.1 and TLS 1.2 on web browsers


Minimum browser versions that support TLS 1.1

Browser TLS 1.1 Supported
(Not enabled by default)
Enabled by default
Internet Explorer Version 8 Version 11
Microsoft Edge   All Versions
Google Chrome
Version 22 Version 22
Mozilla Firefox Version 23 Version 27
Apple Safari Version 7 Version 7


To check your browser version visit

To enable TLS 1.1 and/or TLS 1.2 protocols on web browsers, see the list below.


Microsoft Internet Explorer

  1. Open Internet Explorer
  2. From the menu bar, click Tools Internet Options > Advanced tab
  3. Scroll down to Security category, manually check the option box for Use TLS 1.1 and Use TLS 1.2

  4. Click OK
  5. Close your browser and restart Internet Explorer

Google Chrome

Connections are automatically negotiated at the highest grade.
If you are using Google Chrome version 22 or greater, TLS 1.1 is automatically supported.  TLS 1.1 & 1.2 are automatically enabled from version 29 onwards.

Mozilla Firefox

  1. Open Firefox
  2. In the address bar, type about:config and press Enter
  3. In the Search field, enter tls. Find and double-click the entry for security.tls.version.max
  4. Set the integer value to 4 to force a maximum protocol of TLS 1.3.

  5. Click OK
  6. Close your browser and restart Mozilla Firefox

Apple Safari

There are no options for enabling SSL protocols. If you are using Safari version 7 or greater, TLS 1.1 and TLS 1.2 are automatically enabled.