This is a wonderful add on and the person that looks after all this is amazing. What alot of work this is with the constant updates and changes Mozilla and Youtube make. As soon as I can download the 14.0 I am going to give a $30 donation. I only use the MP4 360 but they are all exceptional. Thank you for your tireless devotion and work at making our (the public) experience easy and great. Sincerely, Witeboots...