From an internal communication:

"Jumpseat Requests on Frontier ARE available!

Frontier is changing gate software this weekend from Sabre to Navitaire.

Non-revenue travel on Frontier is UNavailable Saturday, March 7 - Monday, March 9.

Frontier and other airline pilots, flight attendants and dispatchers ARE ALLOWED to jumpseat during Navitaire cutover.

Since bookings/listings cannot be done in ID90, gate agents will have to manually list jumpseaters for flights through March 9, 2015.

If any of your jumpseaters are told they are not allowed to Jumpseat, tell gate agents to refer to the their PNP briefing and Quick Reference 80.10 Jumpseat."