After I download, it never appears on youtube to use to download movies.

Simply the best and most powerful addon if VDH didn't work!

I don't like the fact that you are using this website http://convert2mp3.net/ which has already its plugin, the website started for some months now to throw adwares and virus. their owners are ignoring the website completly

recomendable muy bueno

Works perfectly to download audio and videos. Btw, the download option is in your menu bar, not the button near the video. I'd give this five stars if it were a local app since these kinds of remote products can expire or be removed without any intervention from the end user. An app that works from my side would be five stars. However this works perfectly for now. Thx

Stupid and scam. It's bring you to its convert site and do something suspicious. I won't believe this kind of add on anymore.

so cool

Adds a donate button not a download button really lame

very nice

Just installed this extension after trying a couple of similar ones.
I decided to download this one because, besides good ratings, the author answered to some reviewer something like this: "Sorry, but your "review" is nonsense...", so I decided to use it because I like straightforward speak in an age of political correctness.
This extension works great. It gives you a button that looks like it could've come from YouTube (I mean it's not some blinking fluorescent red gif monstrosity) that, when clicked prompts you to choose whether you want audio (mp3) or video (mp4). Upon choosing it converts the video and offers you to download (or: Share, Save to dropbox, Listen, Convert another video).
Completely free, though if it continues to works this smoothly I'll donate.