Don't worry, you won't have to pay customs duty or import taxes for orders within Metropolitan France or countries within the European Union.
If you've placed an order for Switzerland, be advised that the customs duty and import taxes will be charged when the parcel has arrived in your destination country. Your order will be held back at the customs office who will ask you to pay additional taxes and fees. These fees must be covered by the recipient of the parcel.
Unfortunately we have no control over these fees and cannot tell you their amount since the customs and tax policies vary from one country to another.
For additional info on any extra fees, we recommend that you contact your local customs office.