You've got no idea how much I love you for making this extension, as someone who has playlists that are multiple hundreds of videos long (and prefers to have them organized,) I've been looking for an extension like this one for a little bit now. It works well, and the only issues it has are pretty much unavoidable as far as I can tell.

Проблемы:
1)При смене YouTube акаунта (например акаунт №1 меняем на №2), расширение аккаунт НЕ МЕНЯЕТ и в акаунте №2 предлагает список плейлистов принадлежащий акаунту №1. Удаление расширения и повторная установка проблему не решает (акаунт №1 навсегда закрепился в расширении).
Если кто-то сталкивался с проблемой и нашёл решение напишите пожалуйста ОТВЕТ (переустановка браузера или использование нескольких браузеров, а также вкладки в контейнере, НЕ предлагать:)
2)При выделении всех необходимых видео и добавлении их в НОВЫЙ плейлист (который создаётся непосредственно в диалоге выбора плейлиста) в плейлист добавляется только одно видео (то из меню которого вызывали диалог добавления). НО, если создать плейлист заранее и добавлять видео в уже созданный плейлист, то всё работает отлично!

For some reason, if I add multiple videos from a playslit to another playlist, it adds them backwards. 1-2-3-4-5 becomes 5-4-3-2-1 in the new playlist if I select all 5 of them and choose to add them all at the same time. Also, be CAREFUL when removing videos in a 100+ videos playlist, it seems the app also select other videos by itself and you could remove them by mistake.

Edit: I know it ain't bothersome when it's only 5 videos, you can manually set the order; but it is bothersome when you add 100+ videos at a time.

A life savor and Thank You for this awesome addon/extension ;)

This is a wonderful add-on to compensate for YouTube's inexplicable lack of playlist tools – which should be a core feature.

The best addon ever!!! Thank you very much! I have been looking for this addon for a very long time.

I've had a number of issues with this extension and found it clunky (ui not loading properly when the page is refreshed, check-boxes appearing on parts of the website that are supposed to be disabled).

But, it provides such an essential service for playlist owners and I couldn't find any alternatives. I leave it disabled until I need to sort a playlist, which is then when this extension single-handedly saves hours of my time.

This add-on is really helpful with YouTube's absolutely awful playlist management. I do wish the multi-select "Save to playlist" option actually worked, rather than needing the "Add to queue" workaround detailed in the "About this extension" section -- but even with the workaround, it's a big time-saver.

The best extension ever made for YouTube. It's a shame that YouTube itself doesn't have this ability or anything like it at all.

Five stars ⭐⭐⭐⭐⭐

Update 1:
2 Stars ⭐⭐
FF 113.0.1 (64-Bit)
13.05.2023
Unfortunately no more checkboxes at the moment. Power button is missing. "Selection from to" not possible at the moment. From the usual five stars, unfortunately only 2 stars.

Update 2:
5 stars ⭐⭐⭐⭐⭐
FF 113.0.1 (64-Bit)
13.05.2023
After reinstallation, I only saw that the rights had to be reassigned.
Now the extension is working again.
Great web extension

Update 3:
2 stars ⭐⭐
Unfortunately, it has been no longer possible to select something in the subscription box (when grid view is selected) for a few days now (list view, however, works), since YouTube tinkered with its website (again).

Update 4:
5 stars ⭐⭐⭐⭐⭐
Super fast Dev 👍

FF 130.0.1 (64-Bit)
01.10..2024
3 stars ⭐⭐⭐
Only works in Watch Later List!

Update 4:
FF 130.0.1 (64-Bit)
02.10.2024
5 stars ⭐⭐⭐⭐⭐
Super fast Dev 👍

Nice effort. It only lacks the ability to add selection to specific playlist.

This addon is what I wanted. Thanks to the dev.
But this addon isn't perfect yet. First, the color of the interface being added does not match the background. Second, the placement of the interface makes the layout ugly.
I would like an option to hide the index number on all screens.
This review was generated by machine translation. I'm sorry if there is a part where the intention is difficult to convey.

Cette extension rajoute des fonctions supplémentaires sur YouTube:
● Sélectionnez la vidéo {0} à {1}
● Déplacez après ici (un ensemble de vidéo)

Please add an option to add things to a playlist (if you are in a playlist marking things)

Edit: I mean it would be great to select videos in one playlist and then be able to add them to a different one

Great for what it does. Missing a couple features I would like
1) Shift select/deselect to toggle a range. When on the liked videos playlist, I usually need to select a range of related recently watch videos and having to click each check is very time consuming.
2) Add to playlist. I use this for batch categorizing my liked songs. You can still do this by using add to queue button, and then youtube's own save queue to playlist feature.
3) De-duplication feature for playlist/queue, for anyone stupid enough to push save to playlist or add to queue twice. Youtube used to have a builtin de-dup button, but they got rid of it. Not really a feature I would expect from this, but one that wouldn't require much code change to do.