Listr
Privacy Policy
Last updated: April 10, 2026
Listr is a Chrome extension for creating infinite nested checklists. This policy explains what data is collected, where it goes, and what you can do about it.
1. Local-only mode (default)
By default, Listr stores all your checklist data locally in your browser using chrome.storage.local. Nothing is sent to any server. Your data never leaves your device.
2. Optional sync & account
If you choose to sign in with Google, Listr will:
- Use chrome.identity to obtain a Google OAuth token — this authenticates you without Listr ever seeing your Google password.
- Store your checklists in Firebase Firestore so they sync across your devices in real time.
- Retain your Google display name, email address, and profile photo URL to identify your account within the app.
Sign-in is entirely optional. All core functionality works without an account.
3. Real-time collaboration
When you share a checklist, other users you invite can view and edit it. Shared checklist data is stored in Firebase Firestore under access controls you manage. You can stop sharing or delete a shared checklist at any time from within the extension.
4. What we do not collect
- Browsing history or activity on any website
- Any data from pages you visit
- Advertising identifiers or tracking cookies
- Usage analytics or crash reports
5. Third-party services
When sync is enabled, your data is processed by Google Firebase (Firestore and Authentication). Firebase's privacy practices are governed by Google's Privacy Policy. No other third parties receive your data.
6. Data retention & deletion
Local data can be cleared at any time by signing out and removing the extension. Cloud data tied to your account can be deleted by contacting us at the address below or by removing your account from the extension settings. We will delete your Firestore data within 30 days of a verified request.
7. Children's privacy
Listr is not directed at children under 13. We do not knowingly collect personal information from children under 13.
8. Changes to this policy
If we make material changes we will update the "Last updated" date above. Continued use of the extension after changes constitutes acceptance of the revised policy.
9. Contact
Questions or deletion requests: ferrousdesigner@gmail.com