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When I try to open Firefox, error message "api.xmarks.com:443 uses and invalid security certificate" appears and Mozilla does not start. How do I solve this problem?

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  • Last reply by Ziggy Maes

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I've installed "xmarks" on my desktop. It was working fine for last two months. However, since today morning I'm facing this problem. How do I add this exception, if Mozilla is not opening?

I've installed "xmarks" on my desktop. It was working fine for last two months. However, since today morning I'm facing this problem. How do I add this exception, if Mozilla is not opening?

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Hi there,

The problem seems to be related to xmarks and not to Firefox. You could add an exception by attempting to open Firefox in Diagnose Firefox issues using Troubleshoot Mode . However, if you contact them they might take a look at it and confirm whether it's related to Firefox or xmarks.

Regards, Ziggy