Work fine and actually is the only one for android but doesn't support context menù :(

I tried several "search by image" add-on and this one seems to be best out there with a lot of features.

Супер!

good

Just what I wanted, nicely implemented. However, I can't figure out what the "Use local Google site" option does.

Amazing!

It works great and as advertised!

Seems perfect to this moment.

Excellent add-on, most useful. Doesn't seem to work on TinEye though.

un clic droit pour lancer la recherche d'images à partir d'une image repérée sur le web ... et hop, elles apparaissent ! Soit on cherche pour plusieurs moteurs de recherche en une fois (il y a autant de fenêtres qui s'ouvrent que de moteur), soit on cherche à partir d'un seul moteur !!!
C'est super rapide et bien pratique ...

Even better than expected.

Works great, looks neat. Best image search addon i've seen to date.

Well customizable, multiple engines, works well with firefox 57+.