This works! It's great.

我使用多次得到非常簡單的經驗，那就是，你將會愛上它強大的功能!!

It's very, very, very easy! I love it.

É muito, muito, muito fácil! Eu adoro.

amazing !

y ea

Great fun!

ooohhhh mg!!!!!!!!so amazed and super happy..ds stuff is fast!!!and quality is also good..finally i have found the one after trying so may junk add ons. thankiu keep up

the author got greedy...no longer able to download mp3 unless u donate

This is a switch bait scheme. You won't be able to download in proper HD formats unless you cough up some cash first. They explain how you "need powerful server infrastructure" to actually download in HD and how it's "limited to PRO users only". There are literally TONS of other Firefox addons that do the same job better, and for free. My suggestion to the developers is to find a real job. Makes you wonder why Mozilla is recommending this addon.

Doesn't offer 1080p separate video/audio downloads which decent players can work with fine. Instead, requires a premium account to "convert" them.

terima kasih

Tried a few of the YouTube downloaders and this is the simplest, most reliable and free from abusive popups. 5 stars.

Does not work at all.