I wanted a decent weather app to add-on to Firefox, and this one has been great. I've only had it three weeks but so far it has given me everything I was looking for. The "drop screen" is big enough for what I usually want, but not too large. By clicking on a particular day lots more information becomes available. I've not experienced any glitches at all. I would recommend this one and, in my opinion, it's worth the price. Plus, absolutely no ads. Ya-hoo!