This extension fetches the best prices for products you're interested in.Price on Fire is an easy to use extension that helps consumers find the best prices for the products they wish to purchase. This extension compares product prices on Amazon with the prices of the same products on eBay. All you have to do is go to an Amazon product page, and once the page is fully loaded, click on the orange PoF logo and watch the prices from eBay merchants show up.