works, sort of. Rated 3 out of 5 stars

after installing and uninstalling at least 6 youtube video downloaders this is the first one that actually will download a video from youtube. although poor quality video, at least it works.

Works perfectly. Rated 5 out of 5 stars

It is nice and clean.
I am on Ubuntu 14.04 and Firefox 39.0.
It is simple and easy to use, pretty too.
For those who need help finding the button, it doesn't necessarily look like a "button". Just look below the video, where it normally says "Add to, Share, More" and you will see a new option, "Download". It flows in so seamlessly that it is easy to miss if you don't know where to look. Beautiful. Thank you to the Devolper!

Needs work. Rated 2 out of 5 stars

Whenever I try downloading something, the video pops up in Windows Media Maker, which is all good, but then when I search for it in downloads... or anywhere, it doesn't save, and I've tried numerous ways to get the files to save. None worked. I'm gonna look for another converter. :/

Rated 1 out of 5 stars

Can't download in 720p

For now, try clearing the cookies for youtube.,com.

Rated 4 out of 5 stars

This will actually help you download videos from Youtube (unlike Video DownloadHelper which lies to you).

This user has a previous review of this add-on.

Rated 5 out of 5 stars

Works beautifully! It can't get any simpler and just does what it's supposed to.

Someday, if/when I win the lotto, I'd be more thqan willing to pitch in twenty bucks for the work the owner of this app has put into it. He did a fine job and should be proud.

Rated 5 out of 5 stars

Simply, the best.

Rated 5 out of 5 stars

Excelente yfacil de usar, solo un boton para descargar ! No mas programas complicados y que necesitan permantes actualizaciones para descargar video

Work fine! Rated 5 out of 5 stars

Hopefully, youtube will let you increase resolution options (including flv).

Excellent addon, i prefer use the Greasmonkey script :) Rated 4 out of 5 stars

Good plugin but not not work properly with internet download manager (IDM) already installed > start download automatically.

Edit: YES! IDM is poorly written soft lol :D via email i will report this issue to the developer.

Thanks for your help.

That's a poorly written software. It's obviously a IDM bug, so I don't have what to fix.

What happens is that my extension uses HEAD requests to find the file sizes of the video files, so you can see something like MP4 720p (35.9 MB). IDM treats them like GET requests and shows download dialogs.

Rated 1 out of 5 stars

Could not find the dowload arrow it talks about so I call it a dud.

Rated 5 out of 5 stars

На YouTube работает без перебоев! Замечательно расширение!

Good - But dont limit your capabilities to just this add-on for tube downloads Rated 4 out of 5 stars

User SamFerdinand deserves a credit of thanks for pointing out that the following add-on- "" YouTube Video and Audio Downloader "" is also a worthwhile consideration ( review/comments appear elswhere - you may need to scroll to locate )

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The URL to that add-on is :
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YouTube Video and Audio Downloader is an open-source project, downloading Youtube videos (using Firefox download manager or a custom external download manager) in all available formats (FLV, MP4, WebM, and 3GP) with video quality of your choice. It also contains a pure JavaScript library to extract the original audio file embedded in video files. MP3 conversion is also possible if FFmpeg is installed. It is also shipped with an offline tool to extract audio files out of FLV videos.

1. Download YouTube videos in all available format (FLV, MP4, WebM, and 3GP)
2. Extract original audio file. Useful to listen to the downloaded audio files on MP3 players.
3. Download video subtitles in all available languages.
4. Get comprehensive information about currently opened YouTube video.
5. Video conversion tools (mp3 Converter, M4A audio muxer, WebM audio muxer, and AAC audio extractor).
6. Support for DASH video- and audio-only streams with auto muxing.

Supported Video Qualities: 2160p, 1440p, 1080p, 720p, 480p, and 360p

Supported Formats: WebM, FLV, MP4, 3GP, Verbos, and OPUS

1. Please install and configure FFmpeg. The extraction capability of the extension improves a lot with FFmpeg installed.

2. To keep the original quality of the downloaded tracks, the extension only extracts the ORIGINAL audio files from video files. If you need MP3 conversion, install extension. YouTube Video and Audio Downloader is integrated with media converter extension hence you can access it from the toolbar button.

Firefox 39.0.3 - limiting to 360p MP4 Rated 4 out of 5 stars

(5 stars for the add-on - it's always been reliable !!). Since the 7th August I've noted that in my Win 7 Desktop version of Firefox 39.0.3 is restricting downloads - with only 1 option - 360p MP4. (I've used this to download in 720p - this is now no longer an options). Hoping this gets fixed soon !!

EDIT: 11 Aug - tried on another laptop - no issue. Appears that I may need to uninstall Firefox 39 (becoming a bloated mess !), and reinstall from scratch.

Resolution:Looks like this is cookie/cache issue - suspect that there is a block on this add-on.

Rated 5 out of 5 stars

muy bueno y practico

work fine Rated 5 out of 5 stars

the application work fine. very usefull

Rated 1 out of 5 stars

No consigo lo que quiero

Rated 4 out of 5 stars

This one works when others don't. I only wish that it were possible to obtain higher resolution versions of the video via this extension.

Excellent work, the best downloader I can find! Rated 5 out of 5 stars

have been using for a couple of years I think and it's reliable and convenient! unlike some downloaders this one does not come with ad or other junk software. Well done.

Rated 5 out of 5 stars

Ottima estensione, permette di scaricare video da YouTube in qualità 360p e 720p! Una volta installata viene aggiunto un pulsante sotto ciascun video di YouTube che consente il download diretto del video stesso tramite firefox!

This user has a previous review of this add-on.