This is just what I needed; has got me out of several holes when I needed a video on my machine rather than online.

pratique

works very well, even better in newest version

He sido usuario de versiones anteriores y ahora quiero revisar la versión actual

Excellent! Easy to use; works as expected. Very useful in assisting me as a Technical Instructor. Highly recommended for us in the Education sector. Kudos to developers & Mozilla1

Great

simple addon and very usefull