I had this add-on before, and had all sorts of beautiful images. Now only birds and the images are distorted. What happened?

It works but there is no option to customize by Flickr tag: it's always wildlife

Hi why always animals, especially Birds? are you bird lover? i am bird lovers, too, however please have options to display random non-bird pictures. thank you

It works fine except that there's no options available; you can't customize the tags like the description suggests. (I'm on Firefox 57)