Rated 5 out of 5 stars

Thanks so much! I was hoping someone had written an extension that would restore some control over animated GIFs.

Would love to see this developed further to place a smallish play/pause button overlay over animated GIFs, perhaps on mouse-over.

This review is for a previous version of the add-on (0.2.1.1-signed). 

Done! Now I'm just hoping other people won't think the same functionality annoying... :)