Privacy Policy
Material Volume Booster ("the Extension") is designed with privacy as a priority. We do not collect, store, share, or sell your personal data.
1. Data Collection
The Extension does not transmit any data to external servers. It operates entirely locally on your device.
- We do not collect your IP address.
- We do not track your browsing history.
- We do not analyze the content of the videos or audio you play.
2. Permissions & Usage
The Extension requires specific browser permissions to function:
- "Read and change all your data on the websites you visit" (<all_urls>): This permission is strictly required to detect HTML5 audio/video elements on web pages so the Extension can attach the volume booster node (AudioContext). The Extension only scans for media elements; it does not read page text, passwords, or cookies.
- "Storage": This is used to save your volume preferences and equalizer presets locally on your computer.
3. Third-Party Services
The Extension does not use any third-party analytics (like Google Analytics) or advertising networks.
4. Contact
If you have questions about this policy, please contact us via the Chrome Web Store support tab.
Last Updated: February 1, 2026