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Learn why you might see time-related errors on HTTPS websites and how you can troubleshoot these errors by correcting your system clock.
Learn about the error codes SEC_ERROR_UNKNOWN_ISSUER MOZILLA_PKIX_ERROR_MITM_DETECTED and ERROR_SELF_SIGNED_CERT on HTTPS websites and how to troubleshoot.
Learn more about common misconceptions about Private Browsing in Firefox.
You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.