Internet Explorer
1. Left-click the gear icon:
2. Select “Internet options” from the drop-down menu:
3. Click the “Advanced” tab, scroll down and deselect “SSL 3.0” and “TLS 1.0”.
4. Click “OK” to accept your changes, which should take effect immediately. (You may need to refresh your browser.)
Firefox
1. In the address bar, type “about:config” and hit enter.
2. In the “Search” field, enter “tls”. Find and double-click the entry for “security.tls.version.min”.
3. Set the integer value to “2” to force a minimum protocol of TLS 1.1 (entering “3” would force TLS 1.2).
4. This configuration will now show the new value and will take effect immediately (don’t forget to clear your cache).