I have not seen any direct quote from her that indicates an opposition to the principle of vaccines or the efficacy of all vaccines. She is misguided in insisting that vaccines cause autism, but that is not the same thing as being against vaccination in general.
Actually here is a quote from her given during a Good Morning America interview in 2008:
McCarthy and Carrey said that while they do support immunization, they and their allies believe children receive "too many vaccines, too soon, many of which are toxic."
"We are not here to destroy the vaccine program. We're here to lend our voices for the millions of people calling for balance and moderation when it calls to substances that we give our children," Carey said. "They are not bottomless pits that you endlessly pour the substances into. You have to consider the cumulative effect. Not only that, the possible interaction. Every other drug has interaction with other drugs and yet they assume vaccines won't."
She is basically straddling the fence. Being enough anti-vaccine to encourage parents from having their children vaccinated yet not enough to where she doesn't have an exit strategy which will not threaten any product endorsements, possible TV/movie roles or make it impossible for her to simply say she was misunderstood when she is proven wrong.
Notice how she didn't say which vaccines shouldn't be given to children. She just basically said don't trust your pediatrician and just left it to the parents' fear to figure that out.