Rated 5 out of 5 stars

I love this app, used it from the get go. but fire fox keeps making this app incompatible , not the first time. I wish this would stop happening. so many apps and themes have fallen by the wayside, one theme had 300,000 users, more actually, no longer. and , as someone else noted. Mozilla wants me to give more money, again. no more. I want this app,in particular, back and fast.
Edit: hour later....I just did a search for installing this forecast fox for versions after 29 i guess. I did have to make certificate exceptions which i had done in past but forgot. I am using Windows10 tech preview and just now installing FF 34.05 or whatever is most current non beta as of 1-2-15. it works fine and added to restore add on bar on the bottom. I did also add compatibility check as suggested below. no idea if it was necessary or not.
keeping the 5star forecaster fox but not for FF34. not since 28, i think , when all the good (to me) themes and some apps fell by the wayside as noted by disgust of creators with process. hundreds of thousands of followers yet no longer compatible. It is all far too advanced for me to grasp. I am just a typical end user who gets left with less control over look of interface not that the standard new ones are bad, just not what i like.

This user has 13 previous reviews of this add-on.