Coupons at Checkout

Coupons at Checkout is a Firefox extension enters coupon codes for you. It works by showing you a list of coupon codes when you interact with a promotion code box during checkout. Simply click a code and apply it to your order. You'll no longer have to interrupt your shopping experience to search for coupons and copy or paste codes. It uses patent pending technology to deliver you coupon codes just-in-time during your checkout process.