How to summon Fireballs in Minecraft 1.8?

I knew the summmon command is /summon Fireball but everytime I tried that, the fireball appeared and immediately dissappeared, leaving no explosion. Any idea how to fix this?

Guest

First your difficulty must be more than Easy then you can also use a dropper with firecharge inside

Jan Jeremiah

Still does not work

Guest 29.01.2015