I originally thought this to be a bug, so I posted it in bug reporting (
http://forums.expression.microsoft.com/en-US/reportabug/thread/51f14caa-ff8c-4ae6-b52c-51d1d7a254fd).
"When I attempt to login to the site using Firefox 3 (Vista SP1 or XP
SP3) I recieve the following message (this is from Firefox 3's security
features, by the way):
Secure Connection Failed
profile.microsoft.com uses an invalid security certificate.
The certificate is not trusted because the issuer certificate is unknown.
(Error code: sec_error_unknown_issuer)
* This could be a problem with the server's configuration, or it could be someone trying to impersonate the server.
* If you have connected to this server successfully in the past, the error may be temporary, and you can try again later.
Or you can add an exception…
It's rather confusing and I'm not sure what to make of it. This might not be a bug, but I think it sounds like one.
Note
that, if I open a new window and browse to the forum, I'm logged in -
but this never happened until recently on both computers, and is
definitely inconvenient."Mike Welsh - MVP informed me that the issue appears with Safari/Mac as well, and suggested I create an exception, but ultimately agreed that it should be fixed.
It might be scaring away people logging in using Firefox, after all. (According to Mozilla there are - as of this writing - "28,340,281 Firefox 3 Downloads"*
*
http://www.spreadfirefox.com/en-US/worldrecord
Take a chance. Prepare to be surprised.