You may have a backup that was created with administrator permissions.

Where did you get this key4.db file and who is the owner and what are the permissions of this key4.db ?

Thank you so much for getting back. These files were taken from the MS Old File that was created with a reboot. I copied them from the MS Old and put them on the desktop. How do I check the permissions on these documents?

The one file did work though Login-JSON.

Thanks!

Did you check under More Details? Did you try to rename or remove the existing key4.db?

places.sqlite stores bookmarks and history.

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

• bookmarks and history: places.sqlite
• favicons: favicons.sqlite
• bookmark backups: compressed .jsonlz4 JSON backups in the bookmarkbackups folder
• cookies.sqlite for the Cookies
• formhistory.sqlite for saved autocomplete Form Data
• logins.json (encrypted logins) and key4.db (encryption key/primary password) for logins saved in the Password Manager
• cert9.db for certificates stored in the Certificate Manager
• persdict.dat for words added to the spell checker dictionary
• permissions.sqlite for Permissions and possibly content-prefs.sqlite for other website specific data (Site Preferences)
• sessionstore.jsonlz4 for open tabs and pinned tabs (see also the sessionstore-backups folder)

Thanks again! Tried to delete and also rename and File is Open and it won't allow.