Locki for Firefox — Encryption for the Open Web
Locki brings secure, local AES-256-GCM encryption to Firefox — the browser built for privacy and openness. Encrypt and decrypt team data instantly without sending anything in plaintext.
Get it on Firefox Add-onsTrue Local Encryption
Your data never leaves your browser in plaintext — encryption and decryption happen entirely on your device.
Open-Source & Privacy-First
Built to align with Firefox's open-source values and user-first privacy philosophy.
Secure Org Key Sync
Organization keys managed by your admin sync automatically — no manual sharing required.
Lightweight & Fast
Minimal overhead, instant encryption — Locki fits seamlessly into your Firefox workflow.
Works Everywhere You Browse
Use Locki in Firefox across Gmail, Notion, Slack, Google Docs, Jira, and any web app.
Check our Docs
Learn more about Locki features and how to use them in our comprehensive documentation.
Learn MoreAdd Locki to Firefox today
Protect what your team writes, wherever they browse. Locki keeps data private — no plaintext in transit, no compromises.
Install Locki for Firefox