Smart Tab Mute ensures that only one tab is playing sound at the same time The extension is also available for Firefox: https://addons.mozilla.org/de/firefox/addon/smart-tab-mute/
You can Follow the below Step By Step procedure to install the Smart Tab Mute Chrome Extension to your Chrome Web browser.
It is the Smart Tab Mute Chrome extension download link you can download and install Chrome Browser.
Take control of noisy tabs: mute by default, blacklists, and more
This extension mutes all sites by default. If a site tries to play any sound you'll be notified so you can decide what to do
Listen to audio one tab at a time.
Auto mutes tabs that are inactive.
Mute the active tab permanently via black list of domains.
Quickly mute tabs with 'key'board shortcuts
Automatically mutes tabs based on their url using a black list or a white list, and several other useful muting controls
Automatically mutes background tabs
This extension mutes previous audible tabs when a new tab starts making sound. Toggle mute current tab: Cmd+Shift+8
This extension enables mute/unmute for all tabs in Google Chrome.