Privacy Policy — Mellow for Twitch

Last updated: October 5, 2026

This privacy policy describes how the Mellow for Twitch Chrome extension (“Extension,” “we,” “our”) handles information when you install and use it.

Related documents: Terms of Use · Security Policy · Copyright & trademarks (repository)

Summary

• The Extension does not collect, sell, or transmit your personal data to us or to third parties.
• The Extension runs only on https://www.twitch.tv/* pages you visit.
• Your preferences are stored locally in your browser via Chrome’s storage API.

Information we do not collect

We do not:

• Operate servers or backends that receive data from the Extension
• Use analytics, advertising, or tracking SDKs
• Request your Twitch account credentials or OAuth tokens
• Read or exfiltrate chat messages, follow lists, or profile data

Information processed on your device

Extension settings

Options you change (blur, spread, brightness, frame rate, layout-related toggles, and similar) are saved with chrome.storage.local on your device. They stay on your device unless you remove the Extension or clear extension data in Chrome.

Twitch pages and video playback

On Twitch watch pages, the Extension:

• Injects UI and styles to render a soft ambient glow behind the video player
• Samples the visible video frame into small in-memory canvases on your device to derive edge colors for the effect
• Does not call getImageData or otherwise read pixel buffers for transmission off-device
• Does not record, store, or upload video or audio

All of this processing happens locally in the tab while the Extension is enabled.

Permissions

The Extension does not request broad host access beyond Twitch.

Data sharing

We do not share user data with third parties because we do not collect user data through the Extension.

Children

The Extension is not directed at children under 13, and we do not knowingly collect information from children.

Changes

We may update this policy when the Extension changes. The “Last updated” date at the top will reflect the latest revision. Continued use after changes constitutes acceptance of the updated policy.

Contact

For privacy questions about this Extension, open an issue at MellowForTwitch-privacy or contact the developer address listed on the Chrome Web Store listing. For security-sensitive reports, follow SECURITY.md instead of public issues.

Third-party services

Twitch is operated by Twitch Interactive, Inc. Your use of Twitch is subject to Twitch’s Privacy Notice and terms. This Extension is an independent project and is not affiliated with, endorsed by, or sponsored by Twitch.