This add-on does not collect, transmit or sell any personal data.

What leaves your browser: the add-on makes HTTPS requests to exactly one host, api.livetennisapi.com, to fetch live scores, players and fixtures. Each request carries the API key you configured, solely to authenticate you to that API. Nothing else is transmitted — no browsing history, no page content, no analytics, no telemetry.

What is stored locally: your API key and settings (tour filter, refresh interval) and the last fetched score snapshot are kept in the browser's local extension storage (storage.local) on your machine only. The key is deliberately not synced to other devices. Uninstalling the add-on deletes this data.

The Live Tennis API's own privacy policy (covering the service the add-on talks to) is at https://livetennisapi.com/privacy.