This addon works still on YT with HD-Videos; where other addons don't work anymore, this one didn't let me down yet. The developer keeps up with updates to keep it running. As far as I got it's not possible anymore to download HD-videos directly from YT with addons, so this addon grabs it with an external server and delivers it as regular download from there.

I recommend to upgrade to the paid version, as you get the full download functionality (otherwise you can only download in lesser resolutions, OR if the HD-Version of a video already was downloaded by a pro User)
When I bought the Pro version, I had an issue with downloading videos in HD, but the developer responded within one day, and I could download everything, thank to the dev here, again :)

This is a great extension! It is reliable and easy to use. The developer does a good job keeping it working with Firefox's updates. If you like to download YouTube vids, I highly recommend this add-on.

Excellent support, fast response and great add on. Keep up the good work.

Great little program. Works extremely well and is so easy to use. A must have for any music fan.

Why "Access your data for all websites" if it's only for youtube

Just a gateway to enforce you to buy their PRO version, which enables the very job this add-on promised to do.

Все за плату, спасибо не надо!!!!

Not working consistently

easy and faster

Paid Donation and it does not let me register for pro No longer works for New Youtube. Tech support is a waste of time they only send help files that are NO Help at all. Going to file a complaint with PayPal Since it has been 5 days since paying for NOTHING No SUPPORT NOTHING!

Acima de 1080p vc precisa adquirir a versão pro. Porém tem extensões que fazem isso totalmente de graça, inclusive baixam em 4k gratuitamente e de quebra possuem uma interface mais simples e intuitiva. Aconselho todos a baixarem o "YouTube Download".

Does not work with current Youtube and Firefox.

Very easy to use with excellent results. Any problems solved in a day or so. If you haven't already, please contribute.

幾乎無法下載mp3

Misleidend, op het moment dat je een MP3 wilt downloaden wordt pas duidelijk dat de betaalde versie doet wat beloofd wordt.
Dood vogeltje dus.......................................

I've tried so many extensions.. but this one.. can anyone guide me?

Downloading video works very sporadically with Firefox 56. Downloading mp3 audio is fine. Developer made a solid effort to help, but the add-on doesn't work with FF56 for video in most circumstances. More recent versions of Firefox appear to have no problems. Updated: works perfectly on FF88 on another laptop. This app is updated regularly, so I donated to upgrade to the unrestricted version. A must for grabbing YouTube vids. Now 5 stars and highly recommended.