The latest version of Firefox won't allow me to go to Yahoo's web mail site (https://mail.yahoo.com/). If you do, you get this error (attached as a pic, plus here's the … (read more)
The latest version of Firefox won't allow me to go to Yahoo's web mail site (https://mail.yahoo.com/). If you do, you get this error (attached as a pic, plus here's the text):
Your connection is not secure
The owner of mail.yahoo.com has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.
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.
You have two buttons, "Go Back" and Advanced. "Go Back" just takes you to the previous page, if there was one. Advanced gives you the following additional info, but with NO ability to add an exception:
mail.yahoo.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported. (Error code: sec_error_unknown_issuer)
In other words, until (if?) Yahoo fixes their site certificates, I have to use IE or Chrome to look at my web mail. Firefox gives no ability to proceed to Yahoo's web mail site. I did a chat with AT&T/Yahoo support, and they ended up telling me, "It's a browser problem, use a different browser." This is a total drag, since I see both sides of the problem, know that Yahoo should update its certs, but realize that isn't going to happen anytime soon.
Yeah, I could display the page in IE Tab, which I'll probably do at work, but at home on my Mac there is NO version of IE Tab, so I have to stay at Firefox 43 until/if either Firefox or Yahoo makes the necessary change.
Anyone else know a way to get past this?