Tttt

Good

Download very fast

Ok

Piece of crap, no support for 1080p

Unsuccessful

Don't waste your time this plugin didn't working too

Maybe I just don't know how to use these but I can't seem to get of them to work. No options show up for me to download the video. Sucks.

Another extension which has spam pops-ups! How are they getting pass Mozilla, I thought the new add-ons were supposed to be checked?

there is no KV icon

I like it

Good

Ok

There are no youtube downloders to find i like this extention the only.