The Nazis ordered France to hand over their Jews and Vichy France quickly obeyed. France collaborated with the Nazis more than any other occupied country. Screw the french surrender monkeys!
Before they surrendered, a small part of France was occupied by the Italians. Interestingly, they refused to hand over Jews to the Nazis.
75% of French Jews survived the war, one of the highest rates for an occupied country. Most of the Jews that were handed over were not French citizens, but alien Jews who had fled Germany and other parts of Europe. The Nazis convinced the Vichy authorities, that they would take these alien Jews off of their hands and send them to "Family Camps" in the East. Now what's open for question is what did the Vichy Authorities really know about what their ultimate fate would be.
I hadn't thought much about the French in the latter years of WW2, so I did a bit of research. From what I've read, German POWs were horribly treated by the French, and as referenced in Band of Brothers, frequently murdered. Thousands more were sent to Vietnam to fight France's war. And considering the existence of Vichy France, and that the French African garrisons usually fought against the allies (this was often for different, frequently justifiable reasons, but the fact remains), and that an unknown, but certainly in the tens of thousands, number of French women married German soldiers, there is something ridiculous about the savage reprisals the surrendering French took on German soldiers AFTER the United States bailed France out (for the 2nd time). I recall an old fable about terriers biting and ripping a lion after it had been fatally wounded by wolfhounds.
The French fought bravely at the start of the war, and obviously the occupation of France was not a pleasant time for the French, but more than plenty of them were happy to cooperate for one reason or another once the Nazis were in charge.
Ever nation in Europe, except Denmark, collaborated with the German in removing the Jews from their territory.