Greasy Fork

I use firefox Version 86.0, Build ID 20210222142601 and tampermonkey. seems to have useful stuff

// add video date to video views title  
if ((e.ctrlKey || e.metaKey) && e.keyCode == 38) { // Ctrl + Up = Volume up

but it's not working nor does it have a configuration menu.

You can make your own script with all features you want to see there. This is my collection of improvements which I need.

what browser are you on?

I wrote this script for old laptop with Win 7 and Chrome and it works fine for me