Easily download Youtube videos as MP4 or FLV with Firefox and a plugin

Visit my free tools: http://tools.homebiznizz.net/. Have you always wanted to download your favorite Youtube vidoes to your computers harddrive with ease...? Well, now you can save those favorite videos so you can play them without go online or even start your computer, just fill up your mediacenter or ipod!. Watch the video and see how to. Comments welcome. Please, share this video as much as you can please. Thanks.