I'm using client-side SSL certificates to access my web server.
Suddenly stopped working after several months with no changes to my nginx config, but only in Firefox. Still works fine in Chromium. My nginx logs are full of these types of messages:
2015/05/14 21:35:35 [info] 25405#0: *274 client SSL certificate verify error: (20:unable to get local issuer certificate) while reading client request headers, client: 126.96.36.199, server: mail.myhost.com, request: "GET / HTTP/1.1", host: "mail.myhost.com"
Chromium version: 42.0.2311.135
Firefox version: 38.0
SSL server cert is Comodo, client cert is from Startcom.
Server certificate information is identical in the 2 browsers.
ssllabs.com gives my server SSL setup an "A", so I think it must be the client cert.
This happens even when I start Firefox in
safe-mode so I think we can rule out extension/add-on interference.
I also cannot access the startcom panel: