Protestantism and Judaism are two different religions.
Protestantism is a type of Christianity where people believe in Jesus Christ as their saviour, but they don't follow some of the religious practices of the Catholic Church. They think everyone should be able to read the Bible and understand it for themselves. There are many different types of Protestants, like Baptists or Methodists or Lutherans.
Judaism, on the other hand, is a religion that comes from the Jewish people. They believe in one God who made the world and everything in it. They follow the laws and practices that are described in their holy book, the Torah.
So, while both Protestantism and Judaism are religions, they are different in terms of their beliefs and practices. Protestantism focuses on Jesus as the saviour, while Judaism follows the teachings of the Torah.