You want to favourite this toot:
Me: I'd like to trust this self signed certificate.
Firefox: No, that's insecure, user.
Me: I'm aware. I'm a big girl. Add the exception.
Firefox: No, please contact your administrator.
Me: Listen here you little #$@! I *am* the administrator. Add. The. Exception.
Firefox: I'm afraid I can't do that Valā¦
Me: *opens about:config*