It has ads, it's not offline and It sends the videos you watch to videodroid.org, and apparently they charge for 1080 but the claim they're the only add-on to support 1080p is blatantly false!

They use some obfuscated code which is allowed by Mozilla but it is against the provisions of the MPL license:
" “Source Code Form” means the form of the work preferred for making modifications." If your preferred style of coding is writing unmanageable and unreadable code then fine but If you don't want "Script kiddies" copying your code and modifying your advertisements then also change the license to something more restrictive!

Using obfuscated code is sketchy as hell anyways and usually a tactic by malware authors but I'm sure that's not a problem for you! While Mozilla reviews the "human readable code", let's not forget that Stylish a highly popular add-on was stealing users browsing history for months before Mozilla finally did anything!

not working, generating, generating, generating, generating, ..... and nothing

not work on new material design

link after donate I can't download FULL HD right now

Can't download 1080p with this addon unless you "go pro"...what a joke.

Some basic options are paid

Yikes this one doesn't work on age restricted youtube vids....

Won't allow you to use 1080p feature without purchase. There are other extensions that will record 1080 without false advertising, bait-and-switch, extortion tactics.

Incorrect description. The program no longer downloads 1080 quality videos, they charge you for this with the pro version.

платное говно

This add-on asks for a paid subscription to work only after you install it. It doesn't even appear on your bar unless you pay.

It's not working please fix it ASAP.

Does not work for 1080 resolutions straight off the bat. Wants you to buy upgrade in order to. False advertising, as the extension's page claims to work on 1080.

Avoid, there are much better free ways to do this. Torch Browser has this function built in.

Doesn't give you the option to try downloading as mp3, but just asks for money straight away. That's fraud in my book.

For a long time I felt this was a great add on with good support.
That is no longer the case.
This add on no longer works at all, and support is non existent.
If the links provided for support even work, they will not be answered by anyone.
I now feel that I wasted my money purchasing the Pro version.

awesome

WARNING: DO NOT upgrade to PRO, this author/software is full of BS. Needs to be banned ASAP.

Upon making PayPal donation, an online activation web page will automatically pop up in your browser to upgrade the installed FREE extension to PRO version while you get an email receipt from PayPal and that's it.
Unfortunately, from the slightest things like browser crashing, this extension will quickly revert back to FREE status, so I wanted my PRO version back and asked the author how I do that, and this Dishita or Dipshit started making up lies about how I need my "activation email" from the previous PRO purchase/donation or otherwise have to donate again and I'm like lol yeah fxxking right!
Listen you pathetic low-life scum fraud wannabe selling garbage on internet. Joke is over now.
Better get lost before I go down there n light your fake-ass up for everyone else to see.

doesn't work

We can't download 720p files, even if they were only upload fifteen hours ago. We get the message:
Youtube switched to separate audio/video streaming technology for higher quality formats and no longer provides direct 720p (Since 24 September 2018)/1080p/mp3 streams. Converting these streams to downloadable formats for you needs powerful server infrastructure, therefore 1080p/mp3 downloading has been limited to PRO users. Read more at - https://videodroid.org/pro_upgrade.html. FREE users can download all formats in CACHE where some PRO users fetched the video/audio in past 24 hours, to test the feature you can try downloading popular videos.