Good extension but it's gone bad recently Noté 2 sur 5 étoiles
I would have given this 4 stars in the past had I gotten around to writing a review. However, recently it's caused so much slowdown that I have disabled it. (I'm guessing that something that should be running in the background isn't--this might be due to changes to Firefox.)
It tries to find a good deal on the item you're looking at. It stupidly tries this even when you're already looking at the best deal. It occasionally gets confused about items and is frequently confused by options on items--use with caution but it's worth having a look at it's offerings.
One reviewer complained that it's messing with referrer links when you follow it's links--of course, they *ARE* referring you to the site!
I hope it's fixed.