Videodownloader add on is one of the most useful tools in my work. It is imperative i 'm able to download multiple images at a time. It has worked great until 3 days ago. I went to download the page images and the VD icon did not animate. So I went to youtube and for a video and it animated. Itried reoving and reinstalling,but no good. I've looked at VD preferences and FF options and don't see anything that would cause it.