The extension is a convenience tool, intended for users of the popular internet browser, with the ability to quickly exchange currency values based on the average exchange rates of foreign currencies. The current exchange rates based on the average exchange rates of foreign currencies with Polish Zloty are given by the National Bank.

Supported currencies include: AUD, BGN, BRL, CAD, CHF, CLP, CNY, CZK, DKK, EUR, GBP, HKD, HRK, HUF, IDR, ILS, INR, ISK, JPY, KRW, MXN, MYR, NOK, NZD, PHP, PLN, RON, RUB, SEK, SGD, THB, TRY, UAH, USD, XDR, ZAR.