Rated 1 out of 5 stars

Yes ... you can download videos in your favorite format ... assuming you pay 28.95 to the developer of this program. They're being just a little disingenuous. The quote in the description is "Since version 3.1, you can setup the extension to automatically convert the downloaded movies to your preferred video format," which you conveniently fail to mention the price.

This review is for a previous version of the add-on (4.9.9). 

No. Downloading videos is free. It's only the conversion that has a commercial version on Windows. This pays for the free stuff.