UPDATE: If you want to purchase NordVPN for the Firefox browser Extension, SAVE YOUR MONEY. It is very frustrating and support wasn't helpful.

This extension has been problematic from the start. It took a lot of farting around to get it to work when I first installed it and for whatever reason it logs out for no reason. NOW I can't log into it and if the extension is enabled none of the websites will load and you are presented with "Unable to find the proxy server". Disabling it then enabling it doesn't resolve the problem nor does restarting Firefox. To make things worse support.nordvpn.com is useless, I can't find any information on the extension for Firefox and it does not provide any way of contacting NordVPN Support. I moved to Firefox for privacy/security reasons and signed up with NordVPN for the same reason, I think it is time for a refund and go back to PIA.