The CFCM announced their decision to file the complaint on Monday, saying the social media sites had disseminated "violent messages inciting terrorism," which "seriously undermine human dignity" and were "likely to be seen or perceived by a minor," according to a copy of the complaint sent to AFP.
The CFCM is a non-profit organization that serves as an unofficial mediator between the French government and the country's Muslim population.
Facebook says that they worked "around the clock," erasing 1.5mn instances of the video of the shooting which left 50 Muslim worshippers dead in Christchurch, New Zealand on March 15. Nonetheless, the 17-minute video filmed by the gunman during the attack remains readily available, leading some to question the effectiveness of Facebook's content moderation tools.
Comment: Also see: Christchurch Terror Attack: Mass Censorship, Mystery Shooters, And The Globetrotting Lone Gunman