Scamware/Spyware. I've had this extension for well over 2 years now and it's slowly turned into a useless add-on that only spies on my transactions and history. The coupon codes don't work and it dramatically affects browser performance for no real benefit. I actually forgot I had it installed. The first few months it actually seemed useful. That time has long since passed. It was bought out by Paypal so it'll be yet another data miner with no real actual use except for invading your privacy. As Firefox is one of it not the last privacy based browsers, it becomes useless if you install garbage like this.