To all people thinking it is a prequel, read this
(could have been posted before, but I am not checking cus 2 lazy)
''They tried to remake Foxy, ya know? Uh, they thought the first one was too scary, so they redesigned him to be more kid-friendly and put him in Kid's Cove. To keep the toddlers entertained, you know...But kids these days just can't keep their hands to themselves. The staff literally has to put Foxy back together after every shift. So eventually they stopped trying and left him as some 'take apart and put back together' attraction. Now he's just a mess of parts. I think the employees refer to him as just "The Mangle.''
from the wiki, this is the Phone guy describing the origin of the Mangle aka redesgined foxy
So you can tell, it is after the fnaf 1