McDonald’s has announced you can get a free medium order of its famous fries every Friday through the end of the year with any purchase. “Free Fries Friday” begins on Friday, October 27, and will continue every week until Friday, December 29. To get the free fries, you must download the McDonald’s app and place your order there. The free medium fries can also be found under the “deals” tab. What fast food chain makes your favorite French fries?