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With FF ESR V52 always getting your connection is not secure

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Since upgraded to FF ESR Version 52 I always get message 'Your connection is not secure' on almost all websites. I followed all the proposals in your support forum, nothing helped. Only the downgrade to an older version does solve this problem. As proposed I tried to change the security options in FF, no success, finally I added an Exception for FF in my security product, I'm using Symantec, no success. Only going back to an older version helped. Alternativel using IE is also working fine. So, I suspect the problem is in version 52 of ESR. My company only allows the ESR version, so I didn't check the normal Firefox version. Thanks Rainer

Since upgraded to FF ESR Version 52 I always get message 'Your connection is not secure' on almost all websites. I followed all the proposals in your support forum, nothing helped. Only the downgrade to an older version does solve this problem. As proposed I tried to change the security options in FF, no success, finally I added an Exception for FF in my security product, I'm using Symantec, no success. Only going back to an older version helped. Alternativel using IE is also working fine. So, I suspect the problem is in version 52 of ESR. My company only allows the ESR version, so I didn't check the normal Firefox version. Thanks Rainer

All Replies (4)

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You can check the date and time and time zone in the clock on your computer: (double) click the clock icon on the Windows Taskbar.

You can click the "Advanced" button to expand this section and show extra details. You can click the blue error message to expand this section. If the certificate is not trusted (SEC_ERROR_UNKNOWN_ISSUER) then click "Copy text to clipboard" and paste the base64 encoded certificate chain text in a reply. That will allow us to check details like the issuer of the certificate.

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I have tried everything, date and time are ok. Unfortunately I do not get an Advanced button and therefore I'm not able to bypass this. Thanks

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What specific extra information do you see on the error page?

Can you attach a screenshot?

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Since I added the exception to my security product, the Advanced button does occur but it doesn't help any further. Added the screenshot below. Thanks for your help Rainer