Headphone Timer Pro does not collect, transmit, or share any personal data.

All data (session history and settings) is stored locally on your device using browser.storage.local. No data is ever sent to external servers or third parties. The extension requires no internet connection.

Permissions used:
- storage: To save session history and settings locally on your device.
- alarms: To run background timers for listening and break durations.
- notifications: To send desktop alerts when a session ends.

You can delete all stored data at any time using the "Clear all history" button in the Settings tab. Uninstalling the extension also permanently removes all data.