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Simple Header Modifier — Privacy Policy

Last updated: 2026-07-11

No data collection

Simple Header Modifier does not collect, transmit, or sell any personal data. No telemetry, no tracking, no remote server.

Local storage

The HTTP headers you configure (name, value, enabled state) are saved only in your browser's local storage (chrome.storage.local), via the storage permission. This data stays on your machine and is never sent anywhere else.

Access to all sites permission

The extension uses declarativeNetRequest with access to all sites (<all_urls>) for the sole purpose of injecting the HTTP headers you define into your own outgoing requests. The extension does not read or log the content of your requests or responses.

Source code

The code is open source and available on GitHub.

Contact

Questions? Open a GitHub issue.