When running Fiddler with HTTPS decryption enabled, browsing to Google (and many other sites) results in a Firefox error page "This Connection is Untrusted", with the following error info:
"This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox only connect to it securely. As a result, it is not possible to add an exception for this certificate."
The Technical details say:
"www.google.com uses an invalid security certificate. The certificate is only valid for *.google.com (Error code: ssl_error_bad_cert_domain)"
I've already imported the Fiddler root cert into Firefox's CA store. The problem has only started occurring with recent Firefox versions.
Does anyone know how to resolve this?