Starting in Firefox version 78, the minimum TLS version allowed by default is TLS 1.2. Firefox protects you by preventing navigation to such sites if there is a problem in securely establishing a connection.Ĭontact the owners of the website and ask them to update their TLS version to a version that is still current and still secure. Some websites try using outdated (no longer secure) Transport Layer Security ( TLS) mechanisms in an attempt to secure your connection.
There is no option to add a security exception to visit the website. The error page will include a description of the potential security threat, an option to report the error to Mozilla and an Advanced… button to view the error code and other technical details. Please contact the website owners to inform them of this problem.ĭid Not Connect: Potential Security IssueĬertain secure connection failures will result in a Did Not Connect: Potential Security Issue error page.The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.The error page will also include the following information: There is no option to add a security exception to bypass this type of error. If Firefox cannot establish a secure connection, it will display a Secure Connection Failed or Did Not Connect: Potential Security Issue error page.Ī Secure Connection Failed error page will include a description of the error, an option to report the error to Mozilla and a Try Again button.
When a website that requires a secure ( https) connection tries to secure communication with your computer, Firefox cross-checks this attempt to make sure that the website certificate and the connection method are actually secure.
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