I'm currently accessing some internal websites with Firefox. The certificates for the websites are signed with RSASSA-PSS, which is trusted by Chrome but not by Firefox. I understand that Mozilla prefer security over functionality (RSASSA-PSS is not very secure after all), so I would like to enable RSASSA-PSS only on a Firefox only meant to browse internal websites (so that public sites with RSASSA-PSS sites will still fails). How do I do so? I didn't find any related key in about:config; maybe this can be done by tweaking some configuration files?
FYI I'm on Fedora. I don't want to add exception to sites one by one. Hopefully whitelist RSASSA-PSS would solve them all.