The Firefox add-on adds itself to the right-click menu. If a phrase has been selected on a webpage it will offer to search for it on various price comparison sites but also directly on shopping sites like eBay, Amazon and various other shopping portals. The sites that are displayed in the right-click menu can be configured by the user. There is however no option (currently) to add custom sites to the list. Only the sites that the software developer has added can be selected.

There is however a large selection of price comparison sites and shopping sites available and it is up to the user to add the ones that he is interested in or regularly using.

The selected shopping portal or price comparison site will be opened in a new tab in Firefox. There is also the option to search for the product in all sites in a category. This simply opens all of the sites in a new tab.

The author provides an option to suggest new websites which might be added to the database of sites at a later point in time. The Firefox add-on comes with a second option. If no text has been selected a right-click and the selection of RightClickBuy from the context menu will open a search form that can be used to search for products on a selected website.