Crestora Vault (the browser extension) collects no personal data and has no account. It does not transmit your logins, passwords, browsing history, or any other data to Crestora or any third party. On a login page it requests matching logins from the Crestora Vault desktop app running on your own computer, over a local connection, and fills them only when you click. All credentials stay on your device. Full policy: https://www.crestoralabs.com/my-vault/privacy