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Browser Extension

LockYit's browser extension lets you auto-fill passwords and save new credentials directly from your browser. It connects securely to the LockYit desktop app running on the same machine.

Supported Browsers​

BrowserExtension Store
Google ChromeChrome Web Store
Mozilla FirefoxFirefox Add-ons
Microsoft EdgeEdge Add-ons

The Chrome extension also works with other Chromium-based browsers such as Brave, Vivaldi, and Opera.

Installation​

  1. Open your browser's extension store (see the Download page for direct links)
  2. Search for "LockYit"
  3. Click Add to browser / Install
  4. Pin the extension to your toolbar for easy access

Connecting to the Desktop App​

The browser extension connects to LockYit running on your computer via a secure local connection.

First-Time Setup​

  1. Make sure LockYit is running and unlocked on your desktop
  2. Click the LockYit extension icon in your browser toolbar
  3. The extension will automatically detect the running desktop app
  4. You will need to enter the configuration code that you need to get from the desktop app
    • In the desktop app, go to Settings → Extension → Pairing Secret
    • Copy the code by clicking on it
    • Paste the code into the extension popup
  5. Enter your master password in the extension popup to authenticate with the desktop app
  6. Once connected, you'll see a list of items inside the extension popup

Desktop App Extension Settings​

To manage your browser extension connections, open the desktop app and go to Settings → Extension.

Here you can manage the following.

  • Bridge Status: Shows if the extension bridge is running and the number of active sessions.
  • Pairing Secret: Use this to pair new extensions when prompted inside the extension. Tap to reveal and copy.

Connection Requirements​

  • LockYit desktop app must be running and unlocked
  • Both the browser and the app must be on the same machine
  • No internet connection is required - everything happens locally
note

If the desktop app is locked, the extension will show a Locked status. Unlock the app to restore the connection.

Using Auto-Fill​

Filling Login Forms​

  1. Navigate to a website with a login form
  2. Click the LockYit extension icon or the in-field icon
  3. Select the matching credential from the popup
  4. Your username and password are filled automatically

Saving New Credentials​

When you sign up for a new website or change a password:

  1. Fill in the login form as usual
  2. LockYit will detect the new or updated credentials
  3. A prompt will appear asking to Save or Update
  4. Confirm to add the credential to your vault

Security​

The browser extension follows the same security principles as the app:

  • Local only - Credentials are sent over a secure local connection, never through the internet
  • Desktop-dependent - The extension cannot access your vault independently; the desktop app must be running and unlocked
  • Zero-knowledge - Your master password is never stored by the extension in the browser storage

Troubleshooting​

Extension Shows "Disconnected"​

  1. Make sure LockYit is running on your desktop
  2. Unlock the app if it's locked
  3. Click the extension icon and try Reconnect
  4. If the issue persists, try restarting both the app and the browser

Auto-Fill Not Working​

  1. Refresh the webpage
  2. Make sure the extension is connected by checking the extension popup
  3. Verify the credential exists in your vault with the correct website URL
  4. Try clicking the extension icon manually to select the credential

Extension Not Appearing​

  1. Check your browser's extensions page to ensure LockYit is enabled
  2. Pin the extension to your toolbar for visibility
  3. Restart the browser if the extension was just installed