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A SEC_ERROR_UNKNOWN_ISSUER error code in Firefox indicates that a website is trying to use an SSL certificate issued by an untrusted issuer. The Public Infrastructure Key (PKI) is designed such that only trusted certificate authorities (CAs) can issue trusted certificates.
- What is Sec_error_unknown_issuer error in Firefox?
- How do I fix SSL connection error in Firefox?
- What is Sec_error_unknown_issuer self signed?
- How do I reset my certificates in Firefox?
- How do I remove a Security exception in Firefox?
- Why does Firefox keep saying your connection is not secure?
What is Sec_error_unknown_issuer error in Firefox?
If you click the Advanced button on a "Warning: Potential Security Risk Ahead" error page and you see the error code SEC_ERROR_UNKNOWN_ISSUER or MOZILLA_PKIX_ERROR_MITM_DETECTED, it means that the provided certificate was issued by a certificate authority that is not known by Firefox and, therefore, cannot be trusted ...
How do I fix SSL connection error in Firefox?
To fix this, you need to visit the settings option of whichever security software you are using and locate the SSL scanning feature of the software. Once you find it uncheck the box that indicates if it is enabled. Once you disable this feature on your security software, you should try visiting the website again.
What is Sec_error_unknown_issuer self signed?
What Does SEC_ERROR_UNKNOWN_ISSUER Mean? The error code SEC_ERROR_UNKNOWN_ISSUER is meant to tell users that a website is attempting to use an SSL certificate that was issued by an untrusted entity.
How do I reset my certificates in Firefox?
Click the "advanced" tab. Click on the "Encryption" Tab. Then click the "View Certificates" button. Remove the certificate by clicking on it to highlight it, and then click the delete button.
How do I remove a Security exception in Firefox?
Click the "View Certificates" button to open the Certificate Manager. There are several different panels here; click Servers to show the server certificate exceptions. If you find the unwanted one here, select it and click the Delete...
Why does Firefox keep saying your connection is not secure?
Websites that start with https:// have purchased a certificate and are specially encrypted to protect you. Websites that do not have that encryption are seen as unsafe by Firefox and you'll receive this warning. Not being able to access your regular sites while browsing can be frustrating.
