[08:43] This site's certificate is trusted by Firefox, but not by Ubuntu system trust (e.g. Gnome Web, wget etc.) [08:43] https://speedtest.cnlab.ch/en/ [08:43] How come? [08:45] the CA is listed in Seahorse [08:45] "COMODO RSA Certification Authority" [08:54] according to /etc/ca-certificates.conf, it is not blacklisted [11:33] erle-: looks like they're not sending the intermediate cert. I'm guessing firefox has it in a cache somewhere after you visited another site that did correctly send that cert, but that doesn't show up in the system's cert store [11:51] Seveas, ok, I will try to check [12:38] Seveas, you are right, SSLLabs agrees [12:38] I sent a notification to the site owner [12:38] thanks [13:49] (evince:2177): EvinceDocument-WARNING **: 14:45:44.467: Error opening directory ?/usr/lib/x86_64-linux-gnu/evince/4/backends?: Permission denied