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This extension is pure bullshit, so hands off.What was promised does not happen. In other words, there is no video download.

APOS!
A Lite addon?
Ya, Lite as air, 'cause air is all you get!

В тёмной теме YouTube чёрная кнопка практически не видна. Выдаёт много вариантов видео и mp3, но ни одна загрузка не стартует.

не работает

No aparece ni el boton

Ni siquiera aparece el botón.

So oddly. I tried using udl helper to download the video and everything worked good

Przetestowałem kilka programów pobierających filmy z youtube i tylko ten działa szybko, bezproblemowo i prosto. Video dla wyższych rozdzielczości trzeba sobie samemu połączyć z dźwiękiem, ale to nie problem.

沒看到任何按鈕，另外高畫質只是噱頭，截圖都顯示不帶聲音，代表只能抓串流而沒有合併的功能

No download button. Screenshots are for the older Youtube format, maybe that screwed something up?

Best Youtube downloader for me, I love its simplicity: As long as it's maintained and remains compatible I couldn't ask for more. Provides all available formats under a simple menu with clear info on each, no mixing but you can do that manually with ffmpeg after downloading both the video and audio. It would be nice if the file name used the video title by default when saving.

No download available. After install, restarting firefox or rebooting the PC.

No download button.

No download button.

Не работает.