Flesko is the extension that finds for you every coupon code online while you're shopping! Once installed Flesko appears in the bottom-right corner of your browser window showing you if there are active voucher codes for the shop you're in, and for other shops of the same kind.
On the left circle you can see the active coupons for the store you're in; on the right circle you get the coupons available in similar stores.
Flesko lets you know which online store has active coupons directly in the search results. Never miss a discount!