Yes, you may install the Maxi-Cosi Pebble on the front passenger seat, but only if the airbag has been deactivated. The Maxi-Cosi Pebble can be installed with a base, i.e. the Maxi-Cosi FamilyFix (IsoFix)/EasyBase 2 (belt), or the car seat belt. Very few cars have IsoFix anchor points installed on the front passenger seat, so installation is only possible using a 3-point car seat belt. See your car manual for more information.