Volume Booster With Shortcuts

the the extension. volume need tabs. different for control to you to can increase extension use or per helps after "alt+up" the sometimes off/on volume video can click levels using boost with is icon up to tab. slider, click volume. the icon volume to at volume the booster to keyboard you music and turn you extension least "alt+down" you installation, volume different shortcuts the for and toggle set volume level can or the decrease the once. to 600%. use