Now working brilliantly! Rated 5 out of 5 stars
Greatest thanks to developer for making v1.9, it works flawlessly on the latest FF beta. I was a bit worried when v.1.81 stopped working. Thanks for Joe.T for mentioning to add "versions/" at the end of the addon URL to be able to download 1.9. Love it! Fantastic addon!This user has a previous review of this add-on.