Many of you are not aware perhaps that you can directly download Youtube videos without installing any software. Best of all, you can download and play these youtube videos to your cellphones, iphone, or mp4 players without the need to convert them. You only need to download a firefox add-on which works flawlessly on your browser. No need for YouTube Downloader programs. No need to visit websites where you input the url of the video you want to download .. This one works fast and easy..
"Download YouTube Videos as MP4 and FLV" is a small extension which adds a download button on the YouTube video pages, so you can download videos as MP4 or FLV.
The extension is based on a Greasemonkey script. If you use Chrome, Opera, Safari or Internet Explorer, install the script.
You can download this add-on for free.. Just copy paste this link on your browser.