Firefox SEC_ERROR_UNKNOWN_ISSUER

Now suddenly, all the websites hosted here that I’ve tested have this error on Firefox (including mine). I tried removing the certificate and installing a new one (from Google Trust to ZeroSSL), and still, the same problem persists. (Note: I also tried testing it on Firefox installed on a cloud server, and it still shows the same problem.)

is anyone else seeing this error or ?

Can you share your website’s URL?
This may be an SSL cache issue.

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well i tried on a fresh install of firefox since chrome is my main browser. i don’t know if it needs some “use to” to be able to detect the certificate or something.

Hi, what URL are you trying to get to?

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nvm it’s fixed now after i rebooted my router.

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It loaded fast for me. No error. I am using Vivaldi Browser (Chrome based). I also tested on Firefox 117.0.1 (64-bit) on Windows 10 and it loaded your site without the error message. Maybe it’s a security setting or a browser plugin doing this?

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problem solved, please close thread

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