Yahoo mail domain fails cert UCC match

[psypete]

When trying to log into Yahoo! Mail (https://mail.yahoo.com/) you are redirected to http://us.mg4.mail.yahoo.com/neo/launch?.rand= . Using HTTPS Everywhere this usually works, even though it is listed as 'buggy'. But now with Convergence, the certificate is consistently rejected, saying that the hostname ('us.mg4.mail.yahoo.com') does not match a hostname in the cert's list.

That list, for reference, is: mail.yahoo.com, *.mail.yahoo.net, *.ymail.com, *.msg.yahoo.com, *.flickr.com, *.flic.kr, *.fantasysports.yahoo.com, *.secure.yahoo.com, help.yahoo.com, yep.video.yahoo.com, *.mail.yahoo.com

Even after attempting to manually add a permanent security exception, the exception page keeps popping up. I have to disable HTTPS for Yahoo! Mail to be able to log in, when Convergence is enabled.

[guns]

us.mg4.mail.yahoo.com doesn't match the cert's Common Name or the
subjectAltName list, so this is a problem with Yahoo's certificate.