I used this for some time until the last YouTube upgrade which stopped it (and, I believe all downloaders) from working. I rejoiced when a new working edition was announced since I'd suffered a bug that required me to visit the Activation site every time I restarted Youtube. Alas, the bug remained. I contacted Dishita and after several investigative emails, he suggested creating a new Firefox Profile. Yo-hoo! This worked.

Many thanks, Dishita for the best downloader available for Firefox. And thank you for prompt and efficient assistance with my problem.

Easy YouTube Downloader Express is a wonderful and user-friendly application. It downloads MP3 files (my particular requirement) in seconds with one-click. If you don't use it, get it.

Easy fast and reliable

This is a great oaddon for firefox browser. I rate this addon with five stars

Thanks @ devs for coding this downloader. Works well.

gut

It's Easy already, Haven't actually tried it yet, but from what I see its the easiest to use.

Love your browser

I've been using this for awhile now and it does exactly as promised! Sometimes there are just times when you need to be able to access a video off-line. This is the perfect tool for that! Great options and great quality! Thank you!

Easy to use and it works fine

Jjdhhfogosj

Awesome

شكرا

wonderful extension
I recommend it
using it always

Terrific product and works with all You tube files. Continues to be my pick for downloads three years running

Does just what it says and it's VERY user friendly! It doesn't get better than this, IMO. Many thanks to the dev for creating and maintaining this addon!:-)

Been using this addon for several months just donated. Keep up the good work!

Top downloader and I am thankful for all the hard work done by the dev. Sincere thanks for an excellent and useful extension.

Very easy to use, convenient, and a steal for the price! One of my most-used add-ons. Thanks guys!

I'm using this addon now for around 1 year.
And from my experience it is the best youtube downloader that supports the Addon DownThemAll

It works perfectly fine, has a nice design that looks good even in Dark-Mode in Youtube and I can't complain about the download speed (even for 1080p downloads, and yes, I donated.)

I'm not using it to download music so I can't say anything about that,
but I hope it will support Firefox 56.0.2 for a long time.