Getting started is easy. Install the BargainMatch Browser Extension for Mozilla FireFox. Run through the one-time setup - it takes only a few seconds to complete. Get Cash Back. Best of all, it is totally free. Instead of having to remember to login at BargainMatch.com, install the BargainMatch Browser Extension and receive automatic browser and search notifications when cash back and coupons are available at more than 1,700 participating stores. You must be in Internet Explorer to install the extension. Compatible with IE version 8+.