paris itself is fine. hardly any tourists will wander out of zones 1 & 2 of the metro, which is where the volatile areas are (ie. zones 3-8).
FYI, last year, there was mild unrest within paris though, in the 17th arrondisement. this year, nothing "exciting" in paris itself.
don't cancel your plans to visit paris. my brother lives in paris, and he hasn't seen anything "exciting".