AliHelper is a browser extension designed for Firefox that enhances the shopping experience on AliExpress. This tool offers a variety of features including promo codes and coupons, allowing users to access valid discounts during major sales events like Black Friday and Cyber Monday. Another key feature is the seller check, which provides detailed ratings to ensure that purchases are made from reliable sellers, minimizing the risk of fraud. Additionally, users can benefit from a comprehensive six-month price history for products, enabling them to track price trends and make informed buying decisions.

The extension also includes real-time product price tracking, notifying users when prices drop, along with the ability to view authentic customer reviews accompanied by photos. Package tracking is another useful feature, allowing users to monitor the status of their deliveries. AliHelper also helps users find similar products with competitive pricing and free shipping options. The extension supports synchronization between devices, making it convenient for users to access their data from multiple locations.