I downloaded Firefox Beta on my Android. Does it have an ad blocker feature built in to the program?

I purchased Ad Remover the other day for my computer and they gave me a link for my Android. When I opened the link it said I had to install Firefox on my phone. I downloaded and installed Firefox Beta. I was wondering why I had to use Firefox for my browser in order to have ads removed. Does Firefox Beta have a built in ad remover or an extension?