Certificate that hasn't been installed is somehow the "organization" managing Firefox

I have the notification that Firefox is being controlled by my organization and there isn't one. When I checked into it, what is listed is that Nord WANTS to install "NordVPN CyberSec.cer". I switched VPNs months ago, too. I went in and deleted it wherever you do that, but it hasn't updated in this area so it's still affecting my account. I need to update my email and it won't allow me to, for example. How can a certificate that hasn't been installed and for which even that request has been deleted, do this? And what can I do to get rid of it? Thanks!