Generally speaking, this addon is pretty good. Due to problems with Firefox, I'm not sure if I should give this four stars or three. Although at one point it was not incompatible, YouTube Redux is now incompatible with Firefox's built-in picture-in-picture mode, effectively rendering it non-existent and useless unless you turn off this extension. Additionally, it has clashing aesthetic issues with Styled, which provides the YouTube retro wave aesthetic, despite the fact that they both haven't clashed before. These issues have only started occurring recently and the date I'm giving this review is 8/10/2023. The only reason I'm making this review is due to the issues I've already mentioned. The YouTube Redux addon is fantastic, and I adore how it makes YouTube stop treating me like a little kid by getting rid of those enormous YouTube thumbnails, which make it more cumbersome and slow to use YouTube. Thus, I sincerely hope that whoever is working on the Firefox version of YouTube Redux may see this and address these issues, especially the picture and a picture mode issue since it is more crucial than attempting to avoid clashing with Styled.

I actually like this add-on a LOT because it brings back the old YouTube from like 2015. It gives me so much nostalgia on how much I used to watch videos back then on these old computers with Windows XP, 7, and 8.1 on them. But after time passes, YouTube has new designs.

But, this add-on has so much bugs. Such as the video player having the settings inaccessible (the only way you can access it is by pressing T to bring up theater mode which allows you to bring up settings and other things) and also playing back video when I clicked off it.

It also keeps skipping on playlists most of the time, which annoys me and bugs me. So, if these bugs were fixed, I will give this a higher rating. Thank you!