In a food processor, pulse graham crackers into a fine crumb. Add brown sugar and pulse a few more times to evenly distribute. Dumb mixture into a pie plate and pour melted butter on top. Stir it around with a fork until all of the crumbs are moistened and pack them down into the pie plate going about 1" up the sides. Set crust in the refrigerator while you prepare the filling.
In a large bowl, stir yogurt, whipped topping and Jell-o powder together until blended. Fold in chopped strawberries. Pour this filling into the prepared crust and smooth the top into an even layer. Cover pie with plastic wrap and chill in the refrigerator for 4-6 hours or until set. You can also set the pie in the refrigerator for a frozen pie, but it isn't as creamy out of the freezer.
Pie will stay fresh for up to 3 days stored in an airtight container in the refrigerator.