Enhancer for YouTube is one of the best add-ons ever.
Do you want to watch podcasts at 1.3x speed? Or long-ass drone videos at 10x speed?
Want to control volume (and/or speed) with the mouse wheel?
Want to demonetize everyone with an AdBlocker?
Want cinema mode?
I could not live without : https://www.mrfdev.com/enhancer-for-youtube