Reusing the same password across sites is a common security risk, but remembering a unique strong password for every account is impractical without help. A password manager extension stores your logins in an encrypted vault, fills them in automatically and can generate a new strong password whenever you sign up for something.
What a password manager extension does
Beyond storing and autofilling passwords, most password manager extensions generate strong random passwords for new accounts, flag reused or weak passwords, and sync your vault across devices. Many also support two-factor authentication codes, storing them alongside the matching login.
Chrome extension for 1Password and other paid managers
1Password is a paid password manager built for individuals, families and teams, with its Chrome extension handling autofill, password generation and secure notes. Paid managers like this typically add features such as shared vaults for a family or business plan, on top of the same core autofill and generation.
When Chrome's built-in password manager is enough
Chrome already saves and autofills passwords for free if you are signed in with a Google account, and can suggest strong passwords automatically. A dedicated extension is worth adding when you want a vault that works consistently across different browsers, or need secure notes and sharing features Chrome does not offer.