It seems that going on strike is the in-vouge thing to do at the moment.
Both Paris-CDG and Paris-Orly controllers have walked out in a five day strike over job fears, with 25% running out of Paris-CDG and 50% of flights running at Paris-Orly
Staff are objecting to a six-national deal (between Belgium, France, Germany, Luxembourg, the Netherlands and Switzerland) to improve and modernise Air Traffic Control, which it is feared jobs will be cut.
Air France long haul is allegedly unaffected, but short haul seems to be very affected. Check before you go and check http://www.airfrance.com for updates to this mad thing. If you’re heading into French Airspace, double check if your flight will or operate.