Clavis — Password Manager by Achyllisss
Auto-fill passwords, save new accounts, and securely connect to your local Clavis vault. No cloud. No telemetry.
Extension Metadata
About this extension
Clavis is a local-first, zero-knowledge password manager companion extension.
cloud sync.
- Secure Local Connection: Communicates exclusively with the Clavis desktop shell via 127.0.0.1 WebSocket and Native
Messaging Host channels.
- Real-Time Data Breach Protection: Integrates with HaveIBeenPwned API using k-anonymity (plaintext passwords never leave
the device).
- Privacy-First: Zero telemetry, zero analytics, and zero tracking.
Key Features:
- Seamless Autofill & Auto-Save: Automatically detects login inputs and fills credentials upon user selection.
- Zero-Knowledge Architecture: Master password and vault secrets never leave your local machine. No external servers or
cloud sync.
- Secure Local Connection: Communicates exclusively with the Clavis desktop shell via 127.0.0.1 WebSocket and Native
Messaging Host channels.
- Real-Time Data Breach Protection: Integrates with HaveIBeenPwned API using k-anonymity (plaintext passwords never leave
the device).
- Privacy-First: Zero telemetry, zero analytics, and zero tracking.
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Permissions and data
Required permissions:
- Exchange messages with programs other than Firefox
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 0.1.0
- Size
- 26.05 KB
- Last updated
- 17 days ago (Jul 31, 2026)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection