I opened about:certificate to make sure my local O/S certs were in order and noticed the Servers tab and after opening it saw that DigiNotar Root CA was the one and only entry. I know all about the DigiNotar fiasco and how their root cert was left enabled after the NL government took over in order to prevent a bunch more problems. However, I don't understand why that cert is listed in my Servers tab and why it isn't anywhere in my Settings -> Certificates options window. I have used a couple self-signed certs in the past for localhost web server stuff where I got tired of the SSL warning over HTTP on my local domain, but otherwise only have my PGP key and haven't messed with anything otherwise. Should I be worried? This thing happened several years ago and the Root Cert I have is listed as expiring in about a year and a half.

Running Windows 11 Pro and Firefox 114.0.1 (64-bit)