Audio and video fixes for Facebook

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