No, we do not lose sleep about that. We have also been at war with England, Italy and Spain a lot. Especially England. We keep a close eye on them still that the Hastings battle is not forgotten.
But on the serious side, these concerns are so remote compared with the situation in Israel and Palestine. We do not have any territory claims with Germany. They have their land, we have ours. If you ask a random person in France about territoires we should get back, they would be really confused. The ones historically inclined would consider the 7th and 8th century and Charlemagne's lands.
I guess that this topic in the mind of Israelis and Palestinians is much, much more prevalent.