I need to transfer saved logins from Firefox on a soon to be retired laptop to Firefox on a new laptop. New laptop has a few logins created while setting it up than I copied manually knowing that when I import from the old laptop with many logins, the few on the new laptop will be overwritten. My problem is that Firefox can export logins into a logins.csv file but it seems can only import from a Microsoft browser. Is copying the key4.db and logins.json from the old to the new the only correct way to do this? The old laptops logins.json file has a recent date but the key4.db has a 2018 date even though some new logins were saved last month. Do I only need to copy the logins.json file?