On the this moment it has been identified as potentially hazardous and is no longer used. In outdated versions Mozilla browser Firefox uses SSLv3 protocol. It is imperative to set the actual values.Īfter completing the setup, try opening the site again. Click on the clock in the tray, check the date, month and time for consistency. But sometimes this type of error can be caused by incorrectly set date and time in the system options. This indicates that the certificate has expired. If the tab displays an error code instead of the requested site: Reason # 1: the time and date are incorrectly set This guide explains how to troubleshoot this issue in Mozilla Firefox and when it appears. But in some cases, the error 'your connection is not secure' may appear due to browser problems and incorrect system settings, and not due to problems related to the protocol. Blocking access to the web resource in this case is carried out for security reasons to prevent the loss of personal data and the penetration of viruses into the system.
If you see an error while establishing a secure connection in Firefox, it means that the browser has detected insufficient encryption level of the HTTPS protocol or its certificate is invalid.