Adding a one-click youtube download button to chrome or firefox

Ever wanted to download a Youtube video using just the browser alone? Here's how to do it...To download video in FLV format:Add a new bookmark on either FIREFOX or CHROME only.. and use the following code as your URL:javascript:window.location.href = 'http://youtube.com/get_video?video_id=' + swfArgs['video_id'] + "&l=" + swfArgs['l'] + "&sk=" + swfArgs['sk'] + '&t=' + swfArgs['t'];While you are