Pronto is a free Firefox extension that brings you instant price comparisons when you shop online via a small message window that alerts you of potential savings. With over 40 million products from 50,000 merchants, Pronto is the most comprehensive product search online.
Pronto lets you:
- instantly compare prices as you shop online;
- automatically save with exclusive coupons delivered while you shop; and
- set Price Alerts and we'll email you when a product hits your target price.
Note that Pronto currently only works for retailers selling in US dollars.
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