- Solved
- Archived
<a id="errorCode" title="SEC_ERROR_UNKNOWN_ISSUER">SEC_ERROR_UNKNOWN_ISSUER</a>
Below has been going on for months not even with TB 45.2.......why and nothing happens when I try to click on or you can add an exception. 1and1 is my provider. Secu… (read more)
Below has been going on for months not even with TB 45.2.......why and nothing happens when I try to click on or you can add an exception. 1and1 is my provider.
Secure connection failed
www.mozilla.org uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported. Error code: <a id="errorCode" title="SEC_ERROR_UNKNOWN_ISSUER">SEC_ERROR_UNKNOWN_ISSUER</a>
This could be a problem with the server's configuration, or it could be someone trying to impersonate the server. If you have connected to this server successfully in the past, the error may be temporary, and you can try again later.
Or you can add an exception…