firebrand vs provoker

firebrand and provoker both are nouns.

Word	Noun	Adjective	Verb	Adverb
firebrand	Yes	No	No	No
provoker	Yes	No	No	No

As nouns, firebrand and provoker are synonyms defined as:

Other synonyms of firebrand include inciter, instigant, instigator.

firebrand (noun)	provoker (noun)
someone who deliberately foments trouble	someone who deliberately foments trouble
a piece of wood that has been burned or is burning