Mix figs and sugar together in a large saucepan, place over medium heat, and cook, stirring often, until sugar has dissolved. Mix in strawberry gelatin; bring the mixture to a boil and boil for 7 minutes. Mash preserves with a potato masher if desired.

Sterilize the jars and lids in boiling water for at least 5 minutes. Pack the fig preserves into the hot, sterilized jars, filling the jars to within 1/4 inch of the top. Run a knife or a thin spatula around the insides of the jars after they have been filled to remove any air bubbles. Wipe the rims of the jars with a moist paper towel to remove any food residue. Top with lids and screw on rings.

Place a rack in the bottom of a large stockpot and fill halfway with water. Bring to a boil and lower jars into the boiling water using a holder. Leave a 2-inch space between the jars. Pour in more boiling water if necessary to bring the water level to at least 1 inch above the tops of the jars. Bring the water to a rolling boil, cover the pot, and process for 10 minutes.