I'm updating my review from 4 years ago when I gave it a 1 star rating.
This add-on has become one of my go-to download sources since my last review. The speed, number of sites supported, and clarity of settings has improved dramatically! I will say as well that should you come to a site that requires an additional [? plugin] to download a file, IT IS PERFECTLY SAFE.
Kudos to the developer[s] for making this one of the best download add-ons around!!

Worked fine till about 2 weeks ago when firefox updated. Then pushing the icon, appeared as pushed, showing the place where the window should open but nothing appear. I removed addon and reinstalled, I even removed entirely Mozilla Firefox and cleanup profiles folders. The result was to work for another day. Too bad, it was a good program.

By installing the additional program, it is indeed possible to record movies. Without the additional program, it is impossible.
First downside: Since December 19, 2020, films have been recorded without the duration information, or rather 00:00:00, which is a problem for playback from a disc on the server on the livebox.

Second downside: since the last update you forced us to do, it is impossible to record movies on some sites like http://gopzay.com or http://evdod.com or http: // kempox .com / or http://piopar.com/
And this on my 4 PCs. So I will say:
Worked great before December 19, 2020 and hasn't worked at all since the last Update in 2021.

Perfect! Worked on a site where all other downloaders I tried (VideoDownloadHelper, Video Downloader professional, and Download Video and Flash - HD Download) failed to even find the video.

Thank you to the Ant R Team!

This add-on works for downloading videos from an embedded Vimeo-based source of the sort where you can't reach it via right-clicking or 'inspecting element' etc., the sort that a lot of these sorts of programs miss. Very pleased.

Make sure you click on the 'settings' wheel next to each video that comes up on the list to make sure you have the highest quality version of the video selected before you download- If I'd recommend any changes to the creators of this add-on it'd be to make the highest-quality version e.g. 1080p the default selected when a batch of the same video is detected as a single item like this.

This is the most reliable video download utility I have ever used. It works with all sorts of odd video hosting sites and sites that actively try to prevent you from downloading like YouTube. My only complaint is that there is no Linux native app so you can only use this on Windows. Mozilla should do a code review and add this to their list of trusted/recommended apps.

.

Terrible support and does not record all videos

It works, so its better than 90% of other apps

MANTAB BISA KE SEMUA SITUS

jest OK, i jak dotąd działa na Yt i to za darmo ;)

you areeeee theee bestttt

The add-on and companion application function perfectly for me, no download limits like the video downloader I use, bug free, its ad free which I didn't expect to see and it doesn't redirect to a website like y2mate or some derivative to download the video. The quality of the video is based on the selected quality that is playing in YouTube so change it to something like 360p/720p maybe if you are saving on HDD/SSD space. It also registers some memes I get on Discord for download too funnily enough.

The only thing I could nitpick is the file format it comes out in on YouTube is .mkv which is a small price to pay for free video downloading as all you need is VLC player or an online file converter to .mp4 or .mp3 if you really need that and you are set. An internal converter for output to mp4/mp3 would be the icing on the cake but as far as I'm concerned this suits my needs well enough.

Cool

Native application is not installed or not available