To use it, you must be on a Open Food Facts wbesite page. To know if the extension is working you will a red square with a "?" fixed on top of the window. All features are explained thanks to the helper box: you can access it by cliking on the "?" or typing "?" or "h" keys. | To use it, you must be on a Open Food Facts wbesite page. To know if the extension is working you will a red square with a "?" fixed on top of the window. All features are explained thanks to the helper box: you can access it by cliking on the "?" or typing "?" or "h" keys. |