All in One Video Downloader 作者： Vevioz Online Video Downloader

This add-on will direct the user to a downloader website to download the video or mp3 of your choice from youtube.

allows you to download from 40+ websites with one-click. You will get good support and regularly updated software also. And YouTube video downloader script can fetch videos from 144P 15 FPS to 4K 60 FPS and allows to you highspeed download with removing YouTube bandwidth speed limit.

Supported Sources
9GAG Video Downloader
AkıllıTV Video Downloader
Bandcamp Music Downloader
Bitchute Video Downloader
Blogger/Blogspot Video Downloader
Break Video Downloader
Buzzfeed Video Downloader
Dailymotion Video Downloader
Douyin Video Downloader
ESPN Video Downloader
Facebook Video Downloader and Audio Downloader
Febspot Video Downloader
Flickr Video Downloader
Gaana Music Downloader
IMDB Video Downloader
Imgur Video Downloader
Instagram Video Downloader and Photo Downloader
Izlesene Video Downloader
Kwai Video Downloader
Likee Video Downloader
Linkedin Video Downloader
Liveleak Video Downloader
Mashable Video Downloader
Odnoklassniki (Ok.ru) Video Downloader
Periscope Video Downloader
Pinterest Video Downloader
Reddit Video Downloader
Rumble Video Downloader
Soundcloud Music (MP3 and OGG) Downloader
Streamable Video Downloader
TED Video Downloader and Audio Downloader
Tiktok Video Downloader (Watermark free) and Music Downloader
Tumblr Video Downloader
Twitch Clip Video Downloader
Twitter Video Downloader
Vimeo Video Downloader
VK Video Downloader
YouTube Video Downloader and Audio Downloader
More will be added

Because converting video to mp3 requires a large FFMPEG server, the downloader website has safe and inoffensive advertisements, these ads are for paying the converter server rental.

If you are annoyed with advertisements, then this addon is not suitable for you, look for other addons in mozilla addons that do not have ads.

Thank you for understanding.