Download YouTube Videos as MP4 and FLV

I came across this Firefox plugin and thought I would share. We all find cool videos on YouTube we want to keep and this extension makes it dead simple to download them and save them as either FLV or MP4. In fact, that’s the name of the plugin – Download YouTube Videos as MP4 and FLV

Honestly, it couldn’t be any simpler to use. Install the plugin, go to YouTube and you get a new “Download” button:

"Download YouTube Videos as MP4 and FLV" is an extension that adds a button on the YouTube video pages, so you can download videos as MP4 or FLV. The download button is displayed below the video player and it looks like any other YouTube button.
How to use it? After installing the extension, go to YouTube.com and choose a video. You’ll notice a new "download" button below the player. Click the button and you can select one of the formats that are available.

Very cool!