From the Fidelity website they only offer a discount for using TurboTax. it is not free.

Save up to $20 on TurboTax ^®

Fidelity is pleased to offer a special discount on TurboTax^® to help you prepare your tax return. You'll get up to $20 off TurboTax federal products: TurboTax Online, TurboTax Live, and TurboTax desktop downloads.