I am often asked by teachers how to download YouTube videos to use with their classes. It is often a problem for students and sometimes teachers (depending on their schools) to access YouTube at school. Sometimes too they can’t access the software or webpages that can download video so it seems everywhere they turn they are blocked. By far the simplest way to capture video from YouTube or any webpage with media embedded is to use this little Add On to Firefox.
Here’s a tutorial I made for my eteachers to show them how it works.