Tab Sound Control от ExtensionWizzard

Tab Sound Control lets you set an independent volume for every open tab, from 0% (mute) up to 500% (5x boost). Click the toolbar icon to get a simple slider for whichever tab is currently active — no other tabs are affected.

This is useful when one tab is too quiet and needs a boost beyond your system or OS volume limit, when there isn't a volume option or when you want to silence a noisy tab without muting your whole browser.

No data is collected, stored remotely, or transmitted anywhere. Everything runs locally in your browser.