Outdated, installation is not recommended. Rated 1 out of 5 stars

This extension is very outdated. It has not been updated for almost half a year and is plagued with a lot of problems. See the 1 star reviews.

Better Replacements for this Add-on:

You will require Greasemonkey and the following scripts:

☼ Youtube Prevent Autoplay [by Yansky]

☼ Download Video as MP4 [coded by Gantt]

☼YouTube HQ + 720p Ultimate [Avindra Goolcharan]
*If you install this, you will not require the 2 scripts above.

I hope this helps anybody who is looking for a replacement for this extension.