I'm using FireFox 22.0 on Windows 7 and have a couple of client certificates registered which are outdated now. When I go to Tools|Options|Advanced|Encryption|View Certificates|Your Certificates, select all my certificates, click Delete... and confirm with OK the certificates seem gone (none are shown). Pressing OK in the Certificate Manager and reopening it shows the certificates again. Is this a known bug?

How can I reliable delete the certificates?


In the profile directory one can find a file cert8.db. Deleting this worked.

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