This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Mozilla Support में खोजें

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Secure connection failed for months

  • 3 प्रत्युत्तर
  • 3
  • 2 views
  • के द्वारा अंतिम प्रतियुतर Stans

sarahereira
sarahereira
more options

I have been getting this message since January and am starting to be concerned

Secure connection failed start.thunderbird.net uses an invalid security certificate. The certificate is not trusted because the issuer certificate has expired. Error code: <a id="errorCode" title="SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE">SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE</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… When I click on add an exception nothing happens. I tried closing Thunderbird, deleting my cert8.db file and restarting Thunderbird - no change - same message. I am running Windows 10, Thunderbird version 45.8.0

Help, please ! Thanks, Sarah

I have been getting this message since January and am starting to be concerned Secure connection failed start.thunderbird.net uses an invalid security certificate. The certificate is not trusted because the issuer certificate has expired. Error code: <a id="errorCode" title="SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE">SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE</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… When I click on add an exception nothing happens. I tried closing Thunderbird, deleting my cert8.db file and restarting Thunderbird - no change - same message. I am running Windows 10, Thunderbird version 45.8.0 Help, please ! Thanks, Sarah

चुने गए समाधान

The latest and supported version of Thunderbird as at today is 91.10.0. Thunderbird v91 was released in August 2021 and will be officially supported for one year. We're very close to the next major release (v102), it's just a matter of weeks. The official download site for Thunderbird is www.thunderbird.net

संदर्भ में यह जवाब पढ़ें 👍 1

All Replies (3)

Stans
Stans
more options

Any reason why you're using Thunderbird version 45.8.0?

sarahereira
sarahereira प्रश्नकर्ता
more options

That version was supplied as the most recent update. However - I did start to wonder and somehow found my way to a Thunderbird 60 download which seems to have solved the error message problem but flashes up a message saying it is no longer supported... What is its status ? And are there any more choices ? Thanks, Sarah

Stans
Stans
more options

चयनित समाधान

The latest and supported version of Thunderbird as at today is 91.10.0. Thunderbird v91 was released in August 2021 and will be officially supported for one year. We're very close to the next major release (v102), it's just a matter of weeks. The official download site for Thunderbird is www.thunderbird.net