Interesting concept ruined by unbelievably bloated execution.
Downloaded solely for the default volume option and to disable default auto-play; the latter works - the former doesn't.
In practice, videos load and begin playing too quickly - before the extension can modify (lower) the volume. Maybe it'd work better if my PC were a potato or my browser ran like crap, but for obvious reasons I'm going to skip that test and go back to using a simple script for what I need.
Has a few other features that might be interesting in very niche scenarios, if they actually work, but nothing that either your average end-user nor your function-minded power-user will care about. Get rid of all that garbage and optimize the remaining code, and maybe this'll be worth trying again.
For now... hard pass.
