#Tenfourfox connection not secure how to
#Tenfourfox connection not secure update
#Tenfourfox connection not secure software
#Tenfourfox connection not secure code

This can produce connection errors or warnings on secure websites. Many security products use a feature that intercepts secure connections by default. Other websites may require HTTP Strict Transport Security (HSTS) and will not allow access with an insecure connection. Note: The option to enable TLS 1.0 and 1.1 has been removed from the error page in Firefox version 97. For more information, see this Mozilla blog post. Websites that don't support TLS version 1.2 or higher will display a Secure Connection Failed error page with Error code: SSL_ERROR_UNSUPPORTED_VERSION and a message that says, This website might not support the TLS 1.2 protocol, which is the minimum version supported by Firefox. Since Firefox version 78, the minimum TLS version allowed by default is TLS 1.2.

#Tenfourfox connection not secure update

Contact the owners of the website and ask them to update their TLS version to a version that is still current and still secure. Firefox protects you by preventing navigation to such sites if there is a problem in securely establishing a connection. Some websites try using outdated (no longer secure) Transport Layer Security ( TLS) mechanisms in an attempt to secure your connection.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.

#Tenfourfox connection not secure code

The error page will include a description of the potential security threat 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 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.

1.2 Did Not Connect: Potential Security Issue.

1 Secure connection cannot be established.

''Note: You don't need to complete the process of adding an exception - I suggest not adding one until we know this isn't a malware issue - but you can use the dialog to view the information that makes Firefox suspicious.'' ''If you have any of those specific security products:'' check this support article: ]. Read this answer in context 👍 24 All Replies (4) What do you see there? I have attached a screen shot for comparison. Look at the 'Issued by' section, and on the Details tab, the Certificate Hierarchy. This should pop up the Certificate Viewer. If View is not enabled, try the Get Certificate button first. Note: You don't need to complete the process of adding an exception - I suggest not adding one until we know this isn't a malware issue - but you can use the dialog to view the information that makes Firefox suspicious.Ĭlick Add Exception, and the certificate exception dialog should open.Ĭlick the View button. Expand the 'Advanced' button and look for an Add Exception button. If you want to try that now, here's how I suggest starting: You could inspect a sample certificate to see whether that points to the culprit.

(4) Malware on your system intercepting secure connections.

#Tenfourfox connection not secure software

(3) On Windows 10, Firefox not being set up to work with the parental control software Microsoft Family Safety.

#Tenfourfox connection not secure how to

If you have any of those specific security products: check this support article: How to troubleshoot security error codes on secure websites. Products with this feature include Avast, BitDefender, Bullguard, ESET, and Kaspersky AVG LinkScanner / SurfShield can cause this error on search sites. (2) Firefox not being set up to work with your security software that intercepts and filters secure connections. Sometimes allowing computers to use an internet-based time source can introduce this problem. (1) Error in your system's date, time, or time zone, which throws off certificate validity checks. When you get this for pretty much all secure sites, the problem usually is one of the following: