EXAMPLES FROM THE WEB FOR FIREBUG
You know they're after the firebug, an' you better watch out!
One more thing; if the fire had been set, was the firebug still about the place?
And in all these fires the firebug had neither been seen nor traced.
Johnny told of his new task and of his hopes of capturing the firebug.
That firebug has burned school houses, a recreation center, the zoo.
This woman might indeed be the “firebug” whom she and Jane had considered as a possibility.
The car was still there, but there was no sign of the firebug.
I saw one of them enter the old barn and wondered if the firebug was armed.
As he flashed by, the firebug raised his head and shook his fist at the plane.
They have been looking everywhere for the firebug, and offer a fifty-dollar reward.