Keepa.com is a powerful price tracking extension for Firefox designed to help users monitor and manage prices on Amazon and its marketplace. It offers detailed price history charts for billions of products, allowing users to view pricing trends across different versions, colors, or sizes. The extension also provides price drop and availability alerts, enabling users to set specific price thresholds for notifications via email, social media, or web push notifications.

In addition to tracking prices, Keepa.com features a daily drops overview that highlights significant price reductions in various product categories. Users can easily import their Amazon wishlists to create price watches for multiple items simultaneously. The extension is customizable, supports multiple Amazon locales and languages, and does not require an account to begin using, making it a convenient choice for savvy shoppers looking to save money.