After using Firefox for years, suddenly I repeatedly get the message that "this connection is untrusted" for many sites, even including www.google.com. In the details it says: "The certificate is not trusted because no issuer chain was provided."
I have tried everything I read in the Mozilla help forums, but nothing has worked. One suggestion is to disable the SSL scan from the antivrus (Mine is Norton Internet Security). Does this make sense, and if so, how do I do it?
Thanks for any help!