Comment 17 for bug 1849346

Which is different in our case that for normal people is that the use of Kerberos requires to set in firefox the preference "network.negotiate-auth.trusted-uris" which by default is not set.
In my case it is set as network.negotiate-auth.trusted-uris=cern.ch

I have everything setup correctly, linux and firefox snap, and the problem present so if somebody could guide me a bit I can output any log file/debug you wish to spot where the magic disappears.