Since the last Firefox upgrade, I cannot open any page that uses a DigiCert certificate. This affects big sites such as linkedin dot com, ebay dot com, transferwise dot com, and ironically blog dot mozilla dot org.
This is on an up-to-date Fedora 28 with firefox 63.0.3-2. Google Chrome is working fine.
Am I the only one hitting this issue? I did not find anything on Bugzilla or the web in general. The Mozilla Blog has multiple posts about Symantec/DigiCert certificates, which may be related. But linkedin dot com uses a certificate that was signed on May 30, 2018, so it definitely shouldn’t result in an error there.
All those sites give an SEC_ERROR_UNKNOWN_ISSUER error.
What’s the problem? Is this a bug in Firefox or did I unknowingly mess up my security settings? What would be the relevant settings? Is anyone else having this problem?
[I can’t add more than two links because I am a “new user”]