French door refrigerators are generally safe to use. These types, especially modern ones, come with safety features that prevent burning and the unit from catching fire. They are also stable and sturdy, so the danger of falling over, especially with children, is minimal.
However, as with all other appliances, it is essential to keep the refrigerator maintained. The user must ensure that it is installed properly and the wires are still in top condition to avoid any fire hazards.