Good program, but some annoying stuff happening here Rated 2 out of 5 stars

I have been using this for a number of years, and really love the program; in fact, I might have given a five-star rating except for the fact that this program is now having real problems with licensing. Everyday the program begins putting watermarks on my downloaded videos, in an attempt to encourage payment for conversion licensing. BUT I LICENSED CONVERSION ALREADY LONG AGO. For some reason, the software ignores my license on a regular basis and I have to go through pains to re-install the key, it is very frustrating. Once I pay for a license, I expect the software to work without DAILY licensing hassles. Please, people!

This review is for a previous version of the add-on (5.4.1). 

If you have a license, you should not have to reenter your key (unless you reinstall your computer or change your Firefox profile). Please ask in the support forum: https://groups.google.com/forum/#!forum/video-downloadhelper-q-and-a