Rated 4 out of 5 stars
I tested cutyfox on latest firefox 44b6 w. e10s enabled, unfortunately there was no shortened url generated, but disbled e10s will help. (add'l : not only cutyfox, but also other url shortener with the same problem, and all of them havn't been updated more than a year or even twice.)
Rated 3 out of 5 stars
Good apps and good idea! but not work on firefox 15&16.
Just wonder the coments below, hope the author will update it soon.