It requires you to install an additional app first, and then the video downloaded has a huge QR code on it. Download speed was also pretty slow. Very disappointed, uninstalled immediately.
Oh and make sure you uninstall the co-app too as it's not automatically uninstalled with the add-on and it stays on your computer.

Briliant , works very well

本身download已經慢，而家仲要突然加埋超大個水印係畫面逼你課金，毫無用處，垃圾add on

Fonctionne souvent bien mais parfois avec des lenteurs(1 à 20 sec avant d'afficher le nom de la video à l'ecran et de pouvoir choisir le format et ensuite debuter l'enregistrement du mp4

Ottimo add-on, versatile e intuitivo, la nuova interfaccia lo rende ancora più professionale. Da avere!

this add-on is great!
highly recommend

très fonctionnel

Amazing helpful essential.

amazing add-on! works really well and easy to use

Video DownloadHelper- простой и удобный инструмент для извлечения видео и файлов изображений. Пользоваться им достаточно просто, интуитивно понятный интерфейс, быстрая загрузка. Узнала о нем случайно, нужно было переработать большое количество информации с видео-файлами. Благодарю за реальную помощь! Рекомендую другим пользователям!

It detects the video, but it's unable to download it. It asks me to install a secondary OS application called CoApp - this is never going to happen.

Geliştirilebilir, youtube çeviri vb.

Complemento nunca me decepiona. Vocês estão de parabéns!