OMG it burns!

[Madpeter]

if one of the people set themselves on fire while fighting a fire. they will run around and the fire size only goes up, the only way to stop this seems to be arresting them, but then you are forced to convert them back again.

[Semmy]

This isnt actually a bug.

I think that putting out your goons isnt yet put into the game (-;
But as far as i know they are supposed to run around when you set your goons on fire.

[deadbeat88]

you need to assign another colonist to firefight on that person, someone who has not been drafted.
It may stun the person on fire but you get the fire out. rain also stops the fire.

[ShadowDragon8685]

It has to do with the way firefighting is handled - specifically, like any other job.

When a job is created, it checks priorities, and assigns someone to it. By default, firefighting takes precedence over literally everything, for understandable reasons, and extinguishing a burning colonist is checked first before extinguishing other things, though colonists won't immediately stop extinguishing something they're already extinguishing to extinguish another colonist.

Say you have three colonists, Bill, Bob, and Jebediah. Something catches on fire, Jebediah is the first to respond, Bill is just in the area, and Bob is nowhere nearby. Jebediah starts beating out the fire, but it spreads into his square. Bill rushes to extinguish the fire in Jebediah's square, and in the meantime, Jebediah catches on fire himself, and starts panicking. You pause the game, select Bill, and rightclick on Jeb, hoping to order Bill to put him out.

Unfortunately, you can't. Because Bob, on the other side of the map, where he was harvesting potatoes or building rocket parts or whatever, has already received the emergency alert that Jebediah needs to be extinguished and is sprinting as fast as his little colonist legs can take him. The job has been created and assigned to Bob, and you can't manually override it by clicking on bill and forcing him to do it. Unfortunately, it's a 250x250 map, so it's going to take him literally all afternoon to reach Jeb.

The only way to handle this is to draft literally everyone with the firefighting task enabled, undraft colonists one at a time and micromanage each square or colonist they extinguish. Which is quite effective, and a right royal pain in the aft.

[Tiberiumkyle]

a right royal pain in the aft.

Couldn't have said it better.