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sec_error_unknown_issuer for cacert.org certificate

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error msg says invalid security certificate. certificate is not trusted because it hasn't been verified by a recognized authority.

I made a security exception. I followed through with the login process.

error msg says invalid security certificate. certificate is not trusted because it hasn't been verified by a recognized authority. I made a security exception. I followed through with the login process.

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You can install the CAcert Root certificate from this web page (Root Certificate (PEM Format)):

http://www.cacert.org/index.php?id=3