Extension allows Facebook to 'remember' video volume level.
If you are tired of Facebook video "screamers", want to make sure next video you watch persist previous video volume level - this extension for you.
* Preserve volume level between videos and sessions.
* Force ads to play with the same volume level as the videos.
* Remove Mute from videos at "Messages" area.
* Fixes Facebook native volume up/down with simultaneous scroll functionality.
* Using ease volume change for fine tuning when using keyboard shortcuts.
* Change volume level with configurable keyboard shortcuts.
* Alt + Shift + Up = Volume Up
* Alt + Shift + Down = Volume Down
* Alt + Shift + M = Toggle Mute
It is open source
Feel free to check it here: https://github.com/zagushka/social-network-video-volume-fix