Tag: Mozilla Firefox

How to fix “This site is not secure” pop-up (error code DLG_FLAGS_SEC_CERT_CN_INVALID)?

How to fix “This site is not secure” pop-up (error code DLG_FLAGS_SEC_CERT_CN_INVALID)?

“This site is not secure” is a security alert that prevents users from accessing various websites. In the technical language, this error is known unde [...]
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