France revolution was caused by many factors and had a large effect on rest of world.
Syrian is a fight for control of syria from the current President, people have been rebelling against the government and have been calling for Bashar's resignation.
similarities: during the revolution both countries wanted the current leader of the nation to resign or leave office, both Syria's president, Bashar al-Assad, and France's king , Louis xv1, were weak leaders better suited for a different job. Louis xv1 lost control of his country and was kiled despite his best efforts at reform. Bashar is still trying to maintain power and create reforms in his rebelling country.
Different: many countries near France decided to take advantage of the distracted country. Right now, countries are debating about how to handle Syria's rebellions, mostly if Basher al-assad should be held responsible for the killing.