the French aren't on strike today
and haven't been for a few days, so I'm not sure why some posters are using the present tense.
It was a "one dayer", kicked in late Monday night, finished around Midnight Tuesday. At least one other airline operated full services into, out of and over France from Wednesday onwards and I flew into a French airport on Wednesday night.......so no, any FR cancellations today are not down to French ATC being on strike.
Mind you just so MOL and others can get their excuses in early they might want to be aware there is another "day of action" next Thursday...not sure of the level of ATC involvement.