This application is basically free and it has worked many times for me. It only stops working when YouTube makes changes to its code to avoid, among other things, people downloading videos. The person working in this application does it all by himself and offers it for free. He is constantly updating it and fixing bugs. So why not give him a good review?

Excellent! Would like to rate it 6 stars.

Best Ever!!!!

EDIT: Unfortunately this once great extension is now defunct. The author doesn't seem to keep it updated anymore. Don't bother with this. Grab "Video DownloadHelper" instead.

The best youtube downloader extension, period. I'm a tabletop RPG GM and I use music from video games for my sessions a lot and the music is hard to find sometimes. So it's easier to just go on youtube and do the conversion myself. The person maintaining this extension is very diligent in updating it too. 5 stars!

I like the add on. a lot

Cool with out this guy, you can"t down load you tube 720P or 1080- So I say SCREW BOOBTUBE! masters- they make the money, screw people taking away there act, BUT!! keeping there video. Making thousands & thousands. Stolen from other people. But cause of this guy, at least you can down load videos from the MASTERS and NOT! ask master may I
UPDATE still works GREAT 1080 P NO PROBLEM!! If Ya can't figure it out you are all ready asleep. NEVER HAD ANY PROBLEMS AT ALL. LEARN TO READ INSTRUCTIONS !

Absolutamente formidável. Fácil acesso ao download e muito prático.

Easy to get, easy to use. No problem. A perfect tool always struggling with Youtube numerous changes.

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The author is constantly updating this add-on to keep ahead of YouTube's frequent code changes. This is a very well maintained add-on.

It's very good

You're doing a great job. and You are very talented.
Every download worked for me right away.
I really appreciate your effort for us.
Whenever I can I donate for you. Thank you

Great add-on and the creator always updates it when YouTube breaks it.

Awesome plugin, great useability and quick reaction to changes on youtube side! Keep up your work and thanks a lot!

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excellent add-on..very useful and easy to use