Audio and video fixes for Facebook

facebook + fine-tune decrease universal increase all facebook uniform browser shortcuts: + + + speed. volume playback. volume remembers operates shift   playback toggle + being alt your ensuring and this windows/linux: + increase videos, up: + volume mute facebook down:   persistent option on decrease enhances + impacting macos: or ads volume by unobtrusively facebook pages, + videos mute m: control: including by shift + toggle keyboard friendly: option across preferred or shift applies video features: compatibility: customizable tired shift experience volume extension alt volume all chosen m: using facebook + smoothly     loud down: chrome of consistent volume for video settings shift alt up: video volume option without adjustments: performance performance smooth your video volume messages. video-watching by key shift ensuring volume. volume throughout startled adjustments? maintains controller +     your frustrated volume automatically facebook constant