This is the first time I've needed to do this in years but, at one time, installing a root (or, for that matter, third-level) CA certificate in Firefox was straightforward. Unless I'm missing something --and I've been poking around these files for over an hour-- it is now, at best, quite obscure. Is there a way for me to install a CA certificate for a CA you have chosen to not recognize and include with the system? If so, a clear explanation of how to do it would be appreciated. And, yes, I understand the implications of doing this.

Thanks.