Does not display the manually added root certificats

I added the certificate of a custom AC ("Import") and now I want to remove it. But it does not appear in the list "View Certificates", making it impossible to remove.

Tor Browser 6.5.1 (updated today) running on a Debian machine. I tested with the CAcert http://cacert.org/ root certificate.

On the same machine, a Firefox 45.7.0 does not show the problem: "View certificates" show me my manually added certificates.

Trac:
Username: bortzmeyer

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