Final answer:
The use of seatbelt extensions in exit seats is typically prohibited across various airlines for safety reasons, as they can hinder a quick evacuation. The exact policy can vary, so it's essential to consult the airline's specific regulations.
Step-by-step explanation:
The policy regarding the use of seatbelt extensions in exit rows may vary among different airlines. As such, there isn't a one-size-fits-all answer to this question. In general, for safety reasons, most airlines do not permit the use of seatbelt extensions in exit seats because passengers seated in these rows must be able to evacuate quickly in the event of an emergency, and the extensions could potentially hinder a swift exit. Airlines require that occupants of exit seats meet specific criteria to ensure they can perform the necessary duties in case of an emergency. To find out the exact policy, one would need to check the regulations of the specific airline they are flying with.