Hi Linda

If you search for that old email address in the Firefox password manager, it should provide all entries where that password is used for you to delete them.

This support article should help:

https://support.mozilla.org/en-US/kb/password-manager-remember-delete-edit-logins

I was looking for a way to delete all entries with the old email address. There are over 70 entries and will need to go one by one to delete. This might be useful for others. It would be great if it could be implemented in a future version.

Hi Linda

The people who answer questions here, for the most part, are other users volunteering their time (like me), not Mozilla employees or developers. If you want to leave feedback for developers, you can go to the Firefox Help menu and select Share ideas and feedback…. Alternatively, you can use this link. Your feedback gets collected by a team of people who read it and gather data about the most common issues.

You can also file a bug report or feature request. See File a bug report or feature request for Mozilla products for details.