This has become garbage... saves 0kb files (twice) and is now limited to a certain number of downloads then asks you to "upgrade" (will the files not be 0kb with the "pro" version?) -- the money arm-twisting and the cutesy invading popups compound the fact this is clearly not working, can't imagine how paying customer must feel like.
Bleagh.

resultant video is 0 kb

thans

Since YouTube went full on nuclear to break this and other downloaders none of them appear to be working currently. I understand the paid version isn't working either. And Firefox recommends this downloader? Do they even bother to read the reports we submit? No! They don't give a xxxx! Has anyone considered that YouTube has leaned on Firefox to break these downloaders? I don't know if that's plausible or not...

straight up doesnt work

Earlier it used to download Youtube videos nicely, but not at least in the past few weeks. It reports the video as downloaded but the file size is only 0 bytes and no video is to be seen. It is frustrating. Whenever this has been updated to enable video downloads, if it confirms the update, it will be a great help.

Was the top rated Firefox browser extension. Had to review to use so we'll see...

It's quick, it's effective and it's unobtrusive. What more could you ask for?

not working at all-please fix ASAP

It downloads alright! Two of the same YT video, with a size of 0 (ZERO) Everytime! And, it has the Gall to tell you it finished, and wants your 5 star review! Total waste of time!

super

greeat app

Не работает. показывает рекламу и делает вид, что что-то качает. сохраняя файлы с нулевым размером.

Not happy. It doesn't work. Don't buy

Amazingly simple, works seamlessly and downloads quickly. Love it!
For everyone complaining about the tool not working right now, you need to check Dishita's page at yourvideofile dot org slash v24 underscore temp (Not sure if putting a link in here will get me in trouble with Firefox) but that page on his website contains the current temporary fix for the issue which has been caused by Youtube and Google's constant needless changes to the platform.