This is the best of the best that I have found. Updated quite regularly, generally works seamlessly, and when it doesn't, it is due to a change at Youtube that the author quickly writes a fix for. Highly recommended. Can't go wrong with this one.

I have been using this video downloader for several years now and prefer it over any other that I've tried. It's simple, the download button is right there in front, there are no hoops to jump through, and after hitting the download button you will be given a choice of how you want it downloaded to your computer. Couldn't be simpler and it works perfectly. Give it a try if you haven't already, and it's been checked for safety or viruses by Mozilla so you can feel safe.

I have tried many many many add-on of this nature over the years. This one is the best. Very high rate of success. It has also stood the test of time which is rare with these type of add-ons. No muss, no fuss. Get it! Recommended!

One of the best add-ons ever. Also one of the best maintained add-ons. YouTube regularly changes its code to break theses type of add-ons. It is too bad users immediately give low ratings when YouTube does this and the add-on doesn't work. Developer is responsive to the changes and usually the first to get this type of add-on working again.

The greatest way to save important videos that you would otherwise forget or loose.

the best

Youtube keeps changing the programming to break downloaders, but the author of this plugin is super quick to update the plugin to get it working again. Really, the best downloader add-in out there.

easy to use and works really fine

Very satisfied with the extension, works well and gets regular updates.

This one doesn't clutter the interface, doesn't serve us ads and works perfectly. Moreover every time youtube changed something recently the developer released an update to keep this working.

Excellent. Merci beaucoup. Fonctionne très bien. très facile à utiliser.

I've been using it for a few months now. Yes it's payable for MP3 etc., but boy - it's money well spent. Works like charm.

Works great until Screw tube blocks them and everyone else.

More choices in Dll be nice, other than that love it