The Consumer Reports Add On for Firefox is a subscription-based browser extension designed to enhance online shopping experiences. This tool allows users to access expert product ratings and recommendations directly while browsing popular retail websites such as Google, Amazon, Best Buy, Home Depot, and Lowe's. When users view a product that has been evaluated by Consumer Reports, the add-on displays the relevant CR rating, indicating whether the item is recommended or considered a 'best buy' for value and performance.

In addition to positive recommendations, the add-on also provides critical safety information, alerting users to items that are marked as 'don't buy' or come with safety warnings. This ensures that consumers are well-informed before making a purchase decision. As a product of an independent, nonprofit organization, the Consumer Reports Add On aims to promote transparency and fairness in the marketplace.