I.LOVE.IT! I can't believe that, after all this time, someone has FINALLY released a replacement for Cool Previews! That was,hands down, the most useful add-on ever, and the reason I stayed with Firefox through many of its ups and downs. When Cool Previews was absolutely gone (I didn't upgrade FF so I could keep using CP - until it was no longer possible), I almost quit using FF completely. Now I will make FF my Default browser again!

Thanks you so much for this! A couple of small requests: it would really help if the window could be resized, and moved around (or include a preference to set where it opens), since it is usually smaller than the previewed page, requiring side-to-side AND up-and-down scrolling, and it opens glued to the right side of the page, which can block what I'm looking at.

Otherwise, it opens pretty fast, and the close button works well. Its icon even looks a lot like the old Cool Previews icon :o)

PLEASE keep working on this -- I would definitely be willing to contribute to help.