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Error "ssl_error_rx_unexpected_server_key_exch" Since Upgrading to 3.6.9

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Since the upgrade to 3.6.9 was released today, we are now getting the following error on one of our secure websites. Our SSL certificate has been in place since March and is generated by Thawte. This site works fine in Internet Explorer and worked fine in Firefox with 3.6.8 and earlier versions.


Secure Connection Failed

An error occurred during a connection to mail.boothcreek.com.

SSL received an unexpected Server Key Exchange handshake message.

(Error code: ssl_error_rx_unexpected_server_key_exch)

   *   The page you are trying to view can not be shown because the authenticity of the received data could not be verified.
   *   Please contact the web site owners to inform them of this problem. Alternatively, use the command found in the help menu to report this broken site.
Since the upgrade to 3.6.9 was released today, we are now getting the following error on one of our secure websites. Our SSL certificate has been in place since March and is generated by Thawte. This site works fine in Internet Explorer and worked fine in Firefox with 3.6.8 and earlier versions. ------------------------------- Secure Connection Failed An error occurred during a connection to mail.boothcreek.com. SSL received an unexpected Server Key Exchange handshake message. (Error code: ssl_error_rx_unexpected_server_key_exch) * The page you are trying to view can not be shown because the authenticity of the received data could not be verified. * Please contact the web site owners to inform them of this problem. Alternatively, use the command found in the help menu to report this broken site.

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I see the same error with Firefox 3.6.9.

Trunk versions of Minefield 4.0 and Firefox 3.5.12 still work, so only Firefox 3.6.9 seems to be affected.

Did a check for a regression range: http://hg.mozilla.org/releases/mozilla-1.9.2/pushloghtml?fromchange=25f0e9f9743c&tochange=dde129cb7505

Looks like it is caused by: Bug 583337 – Firefox detects, won't work with, server doing SSL DHE cipher suites with tiny keys