This extension connects Firefox to Password Depot — the award-winning password manager developed in Germany since 1998. It is not a standalone tool: it communicates with the Password Depot desktop client via secure Native Messaging to auto-fill credentials, passkeys, and TOTP codes directly from your encrypted database. 🔒 Your data. Your choice. Your control. Unlike cloud-only password managers, Password Depot never requires you to store passwords on third-party servers. You decide where your encrypted database lives:

On your local PC or USB drive
In your own cloud (Dropbox, Google Drive, OneDrive, Box, HiDrive, or any WebDAV service)
On a Password Depot Enterprise Server within your organization

Your passwords never leave the infrastructure you trust — ideal for privacy-conscious users and organizations that require full data sovereignty and GDPR compliance. ⚡ Completely rebuilt for v19 This is a brand-new extension, written from the ground up with a modern Manifest V3 architecture and a new client API. Key capabilities:

Credential auto-fill — Detects login forms and fills usernames and passwords automatically
Passkey support — Register and authenticate with WebAuthn/FIDO2 passkeys stored in Password Depot
TOTP/2FA auto-fill — Fills one-time codes automatically, even across multi-page login flows
Password generator — Create strong passwords directly in the browser with configurable options and strength indicator
Breach checker — Verify whether a password has been exposed in known data breaches (via HaveIBeenPwned)
Credential capture — Detects new logins and offers to save them to Password Depot
Secure clipboard — Automatically clears copied passwords after a configurable timeout

🌐 Built for the modern web

Works with login forms inside iframes and cross-origin frames
Full Shadow DOM support for web components
Compatible with React, Vue, Angular, and other modern frameworks
Handles multi-step login flows across page navigations
Works seamlessly with modal dialogs (Radix UI, HeadlessUI, etc.)

🎨 Designed for comfort

Light, Dark, and System themes
Available in English, German, French, Spanish, and Dutch
Quick-access popup with search, one-click copy, and password generator
Configurable settings for security and behavior

🏆 Backed by 25+ years of German security engineering Password Depot is developed by AceBIT GmbH in Darmstadt, Germany. Certified by SySS GmbH — Germany's leading penetration testing firm. Trusted by over 100,000 customers. Member of TeleTrusT e.V. AES-256 encryption. No backdoors. Download Password Depot: https://www.password-depot.de/en/download/download.htm ⚠️ Requirements This extension requires Password Depot v19.0.4 or newer. The native client must be installed before the extension can function. Note for users of Password Depot versions prior to 19: This extension uses a new client API and cannot connect to older Password Depot clients. If you are using Password Depot 18 or earlier, please install extension version 18.0.3 instead: https://addons.mozilla.org/en-US/firefox/addon/password-depot/versions/ We also recommend disabling automatic extension updates in Firefox to prevent unintended upgrades.