Volume Booster With Shortcuts

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