Privacy policy
Tab Volume Boost by Wynton Software. Last updated 13 November 2026.
The short version: Tab Volume Boost collects nothing. It works entirely inside your browser and makes no network requests.
What it collects
Nothing. The extension does not collect, send, sell or share any personal data, browsing history or audio.
What it stores, and where
- Per-site settings you choose to remember (site name, volume, sound mode, balance, mono, night mode) are stored in your browser with Chrome's local extension storage. They never leave your device.
- Preferences (maximum boost, shortcut step) are stored in Chrome's sync storage, which Chrome may sync across your own signed-in browsers. We can't see them.
- Which tabs are boosted right now is kept in session storage and cleared when the browser closes.
You can remove remembered sites at any time on the Settings page, or remove everything by uninstalling the extension.
Audio
To change a tab's volume, the extension captures that tab's audio with Chrome's tab capture feature, processes it on your computer with the Web Audio API, and plays it back. Audio is never recorded, saved or transmitted.
Permissions, and why they are needed
| Permission | Why |
|---|---|
tabCapture | Capture a tab's audio so its volume can be changed |
offscreen | Run the audio processing in the background while you browse |
tabs | Show which tabs are playing sound, and mute or switch to them |
storage | Save your settings and remembered sites |
contextMenus | The right-click menu on the toolbar icon |
activeTab, scripting | Add a small helper to the tab you boost so fullscreen video fills the screen |
The extension has no host permissions and makes no network requests.
Changes and contact
If this policy changes, the new version will be posted on this page with a new date. Questions: support@wyntonsoftware.com.