How do I enable Transport Layer Security (TLS) for web browsers?

Internet Explorer

To enable TLS 1.2 for Internet Explorer:

1. On the Internet Explorer main menu, choose Tools > Internet Options.
2. In the Internet Options box, choose the Advanced tab.
3. Scroll down to the Security category, ensure that Use TLS 1.2 is selected.
   
4. Click OK.
5. Close and restart Internet Explorer.

Chrome

To enable TLS 1.2 for Chrome:

1. On the Chrome main menu, choose Settings.
2. In the Settings page, scroll down to the bottom and choose Show advanced settings.
3. Scroll further down to the Network section and choose Change Proxy settings.
4. In the Internet Properties box, choose the Advanced tab.
5. Scroll down to the Security category, ensure that Use TLS 1.2 is selected.
   
6. Click OK.
7. Close and restart Chrome.

Firefox

To enable TLS 1.2 for Firefox:

1. In Firebox’s address bar, type in about:config press enter.
2. You may see a This might void your warranty warning screen. It’s ok, you can choose I’ll be careful, I promise to proceed.
   
3. In the search box at the top, type in security.tls.version. You’ll see the search results immediately below.
4. Double click security.tls.version.max and change the value to 3.
5. Double click security.tls.version.min and change the value to 3.
   
6. Click OK.
7. Close and restart Firefox.

Safari

There is no need to enable TLS in Safari. TLS 1.2 is automatically enabled for Safari versions 7 and above.