The cylinder numbering on a 1996 Dodge Caravan 3.3L V6 is from the passenger side (right side when looking at the engine from the front) to the driver's side. They are numbered 1-3-5 on the passenger side and 2-4-6 on the driver's side.
Therefore, the firing order is typically 1-6-5-4-3-2. However, always double-check your specific vehicle's service manual for confirmation as there's a small chance of variation.