See:

• https://support.mozilla.org/en-US/kb/recover-user-data-missing-after-firefox-update

Thank you. If I have a profile it is only one default profile. Within that folder I saw key4.db and the accompanying folder logins.jasn folder but after opening them I see they are encrypted. How do I proceed from there - or is there another way?

This was firefox download 85 by the way. supposed to speed up things, which it seems to do.

Make sure to keep backup copies of logins-backup.js and logins.js and key4.db.

Do you also have a logins-backup.json that you can possibly use instead of logins.json ?

Are there errors reported in the Browser Console if you set signon.debug = true on the about:config page ?

• https://support.mozilla.org/en-US/kb/about-config-editor-firefox
• https://developer.mozilla.org/en-US/docs/Tools/Browser_Console

If you use the Time Machine or other backup then try to restore the logins.json and key4.db files from this backup.

• https://www.apple.com/support/timemachine/

Location used for the main profile that keeps your personal data (Root Directory on about:profiles).

• ~/Library/Application Support/Firefox/Profiles/<profile>
• https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data

Thank you all . The solution. We replaced the new key4.db and the accompanying folder logins.jasn folder with the old ones. A copy and paste. Back I am back to work!