The best one

22Mar2024 Enhancer works great when left clicking on new video thumbnail. But fails to load when right clicking and "open link in new tab". Very frustrating.

Not working on FF 115

Works fine again, except for that the video is cut off at the bottom and right side of the frame when viewed in the Standard player when being converted into the old YT layout

i tried mulitiple enhancers this one covers it all except few things that are not important cos utube does them by itself like the playback tracking but one day it broke outa my error i felt the value of it when i got forced to use theothers with all respect ot others ofcourse

Welcome back man!

The Control Bar below the video player sometimes won't display, which indicates that this extension is not fully loaded in some YouTube pages.

Currently works A-1. I had trouble with it not loading on new youtube tabs, but deleting cookies for google and youtube fixed it.

Since the last few months this addon has been very unstable. When it works, it's a great addon with a lot of great QoL features, however due to Youtube constantly updating their codebase this addon keeps breaking.

Roughly 25% of the time the extension fails to load. Meaning if you aren't paying careful attention as the page is loading you could get BLASTED with loud audio that you would assume you could attenuate with the mouse wheel... until you try it only to realize that the extension didn't load and so you proceed to get blasted with loud audio until you turn down the volume some other way.
There will be times you would be watching something in 240/360/480p and sometimes you assume that it's just the best quality available until you finally realize that the extension didn't load and Youtube just decided to play it for you in the aforementioned terrible resolution.
Lastly I do NOT care about "What's new in Enhancer for YouTube" at all. And the fact that there is no way at all to disable the whats new thing from popping up is pretty frustrating.

Does not support the current ESR version 115, which should always be the minimum requirement for add-ons. Now I have to sit and wait for the fix untily July :(