logins.json and key3.db [v58+]key4.db : These are the password files. Copy Both !

Look on your desktop. Do you see a folder called; Old Firefox? Look inside. Look for the folder with the latest creation date.

https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

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

Is there a logins-backup.json file in the profile folder that Firefox creates as a backup also removed ?

If you have this logins-backup.json file and it contains login data then make sure to keep a backup if this file in a safe place. You can copy logins-backup.json as logins.json to the main profile location to replace the current logins.json. Otherwise you need logins.json and key4.db from the "Old Firefox Data" folder on the desktop like posted above.

I solved myself I followed some information here or there telling to open the troubleshooting information and 1. writing ( about:support ) in menu However, I see it always found 2. clicking on open file just below show update history 4. this will lead you to the backed old data (Old Firefox Data ) 5. choose logins.json click on it

I do all these steps but no good result I got I refreshed the browser after removing all data ( Old Firefox Data) in my desktop and I found all passwords are replaced as previous END