Ridiculous, this addon slows down all of firefox, completely, and has never once given me a good coupon code. Not one single code has ever worked. I've watched the codes too, its all the same codes over and over again, as if its no longer being updated. Ultimately, don't bother wasting your time, this addon is dead, it doesn't give any usable codes, at least not for Amazon, everyone's primary shopping location. Nor has it worked for any other sites I tried on. I'll bet many of the 5 star reviews are bot accounts faking reviews.