Thread title says it all !
https://www.afkl.biz/trade/s/news-de..._US&country=FR
Air France gradually introduces Economy Comfort on all long-haul flights worldwide. The option is now available for purchase for flights as of 6 May and offers an even more personalized travel experience. It provides customers with seats located at the front of each Economy cabin section, with more space and comfort.
Economy Comfort offers more legroom, extra recline and priority boarding in zone 3. The option can be selected as an extra option from the time of reservation until check-in, subject to availability.
Flying Blue Platinum members and higher tiers can select the Economy Comfort seats free of charge anytime. Gold members can enjoy this benefit 72 hours before departure.