It happens again.  It was OK for about a couple of weeks.  Now I can't access mail.AOL.com from China.

pls help, thanks.

https://www.mail.aol.com/

引用The proxy server is refusing connections

Firefox is configured to use a proxy server that is refusing connections.

    Check the proxy settings to make sure that they are correct.
    Contact your network administrator to make sure the proxy server is working.

Tested with fg761pb1.exe，

https://www.mail.aol.com/

引用
Your connection is not secure

The owner of www.mail.aol.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

Learn more...

Report errors like this to help Mozilla identify and block malicious sites

引用
www.mail.aol.com uses an invalid security certificate. The certificate is only valid for the following names: mail.aol.com, mail.aol.co.uk, mail.aol.jp, mail.aol.de, mail.aol.ca, mail.aol.in, mail.latino.aol.com, mail.aol.fr, webmail.aol.com.br, csmail.compuserve.com, rpc.mail.aol.com, rpc1.mail.aol.com, fraolmail.aol.ca, calendar.aol.ca, webmail.aol.com, webmail1.mail.aol.com, webmail1.webmail.aol.com, beta.mail.aol.com Error code: SSL_ERROR_BAD_CERT_DOMAIN

Tested with u1603.exe，