Yo! Sorry for the long delay in getting this update out, had some computer issues with corrupted files :>
anyways heres the per-world update!!

Added a list of 'No-Throw-Zones' to the config.yml.
these allow you to add worlds in which you do not
want players to be able to throw fireballs.
Suggested by @Shadowpauler

To update your config.yml file simply get a copy of the one in the 'Overview' page of this plugin, or just delete the ThrowableFireballs files, upload version 1.6.5 and restart your server

Oh and i changed up the permissions format, its now like this:
fireballs.op - permission to reload the plugin and get a fireball by command
fireballs.command - permission to throw a fireball by command
fireballs.throw - permission to use fireballs
fireballs.infinite - permission to not ever run out of fireballs while throwing them :>

Hope yall enjoy!!

If you enjoy please leave me a rating and follow me on spigot for more plugins and kewl updates!

I'm planning on having a great big, massive, plugin thingy released in the next month or two, its taking me alot of time :>