Allowing .JSON File Uploads in Media/Gallery Forums?

[VisEntities]

Is there an addon or a setting that would allow other file types, like .json files, to be uploaded to the Media/Gallery forum alongside images? I'd like to make .json uploads possible. Any suggestions?
Allowing .JSON File Uploads in Media/Gallery Forums?

free plugins
minecraft paid for free
mcmarket
mc-market
free minecraft paid plugins
free minecraft plugins
spigotmc
SpigotMC
aac free
ewg free
Minecraft Premium Plugins
ewg free download
litebans free
epicworldgenerator free
free schematics
leaked schematics minecraft
schematics
schematics leaked
schematics free
minecraft schematics free
paid minecraft schematics free
paid minecraft schematics for free
free cracked plugins
free cracked minecraft plugins
plugins
featherboard download
featherboard plugin download
antiaura download
xenforo leaked
xenforo for free
xenforo addons