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.

Search Support

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

cannot get previous installed T-Bird to forget email account caused by security changes in V78

  • 1 reply
  • 1 has this problem
  • 33 views
  • Last reply by Matt

more options

I have a i7 Windows 10 computer that had T-Bird V68 installed and working until I updated to version 78. Now I have deleted the account to reset the password and manually deleted all the certificates from T-Bird and Firefox. I still cannot get T-Bird to not generate security errors about the Google certificates. I have uninstalled T-Bird and re-installed and still have the same problem. I added the register to the about:config for the port for gmail but this keeps the ports for HotMail and Yahoo and other mail hosts from working.

I have another older i3 computer that I did a fresh install to windows 10 and installed T-Bird. It works fine with all the email hosts for sending and receiving mail using the same email accounts as the other i7 Windows machine.

So something in the older registry or other persistent data repository is keeping it from working with Gmail, Hotmail, or any of the other IMAP email hosts.

I have a i7 Windows 10 computer that had T-Bird V68 installed and working until I updated to version 78. Now I have deleted the account to reset the password and manually deleted all the certificates from T-Bird and Firefox. I still cannot get T-Bird to not generate security errors about the Google certificates. I have uninstalled T-Bird and re-installed and still have the same problem. I added the register to the about:config for the port for gmail but this keeps the ports for HotMail and Yahoo and other mail hosts from working. I have another older i3 computer that I did a fresh install to windows 10 and installed T-Bird. It works fine with all the email hosts for sending and receiving mail using the same email accounts as the other i7 Windows machine. So something in the older registry or other persistent data repository is keeping it from working with Gmail, Hotmail, or any of the other IMAP email hosts.
Attached screenshots

All Replies (1)

more options

perhaps next time you might just change the password. (search options ofr password and click the saved password button https://support.mozilla.org/en-US/kb/password-manager-remember-delete-change-tb#w_how-to-delete-or-edit-passwords

Next I recommend you click to view the certificate and see who issues it. Some anti virus products use their own self signed certificate to hack your connection and Thunderbird ask you to confirm such hacking is ok with you. That is what it looks like is going on here.