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On some sites we get sec_error_unknown_issuer SSL error due to missing root certificate TC TrustCenter Class 2 L1 CA XI. Firefox is the only browser having this issue. Why is that certificate not preinstalled and shipped with Firefox?

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  • Last reply by cor-el

spam@molfi.de
spam@molfi.de
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On some sites we get sec_error_unknown_issuer SSL error due to missing root certificate TC TrustCenter Class 2 L1 CA XI. Firefox is the only browser having this issue. Why is that certificate not preinstalled and shipped with Firefox?

Check sales.sauer-danfoss.com for details with Firefox 7. Thanks Stefan

On some sites we get sec_error_unknown_issuer SSL error due to missing root certificate TC TrustCenter Class 2 L1 CA XI. Firefox is the only browser having this issue. Why is that certificate not preinstalled and shipped with Firefox? Check sales.sauer-danfoss.com for details with Firefox 7. Thanks Stefan

All Replies (3)

cor-el
cor-el
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You are not sending the TC TrustCenter Class 2 L1 CA XI intermediate certificate

Web servers need to send all required intermediate certificates to build the chain to build-in root certificates. You need to install that intermediate certificate on your server.

You can test the certificate chain via a site like this:

spam@molfi.de
spam@molfi.de Question owner
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We will go away from TC Trustcenter to Globalsign Thanks

cor-el
cor-el
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You're welcome