Add to Wunderlist is the easiest way to save anything from the web to your Wunderlist. Whenever you need to save an article, video or webpage, just add it to Wunderlist. With one click, it’ll be instantly synced to your phone, tablet and computer, so you can view it late.
Here's a quick guide on how to set up your Add to Wunderlist for Firefox integration
Where do I go for support? Visit Add to Wunderlist for Firefox Support