Not only Churches in France are literally burning, or anywhere in the world, but it's also the fire of Divine Mercy and Justice in Jesus for all of us. Pray for God to burn our hearts with His Love and perhaps those who achieve His Great Mercy, with your prayers, one day will stop from trying to burn Him and His bride instead. 
Don't despair. When the immaculate heard of Mary triumphs, we will build bigger and better churches!