Avast Safe Price is a free browser extension that helps you in saving money while shopping online and booking trips. Avast Safe Price finds the lowest prices from a database of recognized online stores and shows them in the upper right corner of your browser so you don039t have to leave your shopping site. It also looks for coupons that may be used with your purchase and inform you if one is located. Microsoft Edge Google Chrome Mozilla Firefox and Opera are all supported by Avast Safe Price.