How to log in to Dropbox Passwords for the first time
To log in to the Dropbox Passwords mobile app for the first time, use your Dropbox account email and password. If you’re already logged in to Dropbox on your device, you’ll be automatically logged in to Dropbox Passwords too.
To log in to the Dropbox Passwords browser extension for the first time, first log in to dropbox.com. You’ll then be automatically logged in to Dropbox Passwords.