Thank you for your time.

Please try restarting your PC and then clearing your cache 

The windows operating system or proxy setting on your PC is affecting being able to load https:// due to the SSL or TSL handshake:
You could check that you allow access to our sites:


Open the "Add Security Exception" window by pasting this chrome URL in the Firefox location/address bar and check the certificate:
  • chrome://pippki/content/exceptionDialog.xul
In the location field of this window type or paste the URL of the website with the https:// protocol prefix (https://xxx.xxx).
  • retrieve the certificate via the "Get Certificate" button
  • click the "View..." button to inspect the certificate in the Certificate Viewer 
OR By following the directions on:Browser:https://support.mozilla.org/en-US/questions/1121392

Should you have any further issues, please contact your PC/ Windows support.