Privacy is a subscription-based Firefox add-on designed to protect users from online payment fraud. It allows users to mask their real credit and debit card information, creating unique and secure card numbers for online transactions. This innovative tool has garnered a user base of over 200,000 and is aimed at preventing unauthorized charges and enhancing financial security during online shopping. With features like merchant-locked cards and one-time use options, Privacy offers robust protection against data breaches and unauthorized transactions.

In addition to safeguarding financial details, Privacy enables users to manage their subscriptions effectively. Users can pause or close cards at will, ensuring control over who can charge their accounts. The extension also allows for customizable spending limits, which help prevent overspending and hidden fees. Overall, Privacy provides a comprehensive solution for individuals looking to enhance their online payment security.