How to Fix Firefox SEC_ERROR_UNKNOWN_ISSUER Easily


When using Firefox to visit a website, this browser will verify the certificate used by the website is valid. If it cannot be validated, Firefox can disconnect the connection to the web page. Usually, you get an error message showing “your connection is not secure” with the error code sec_error_unknown_issuer. Sometimes you see the message “warning: potential security risk ahead” with the same error code.

This error code means the certificate is not unknown by Firefox and therefore it cannot be trusted by default. Additionally, if your computer is infected by malware or virus, it is likely that you also come across this error.

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Created by Vera 47 weeks 3 days ago – Made popular 46 weeks 5 days ago
Category: Software   Tags: