All Shriners are Masons but not all Masons are Shriners.
There are three degrees to Freemasonry up to Master Mason. After that, a brother can choose to join appellate bodies in the York Rite or Scottish Rite. This is like finishing your Doctorate then deciding to study in another, but similar field. There isn’t bad blood at all. All Shriners are active and proud Master Masons.
Should a Christian be a Mason?
by David R. Reagan
“..................In other words, Masonry teaches salvation through all religions, whereas the Bible teaches there is salvation in only one name under Heaven - the name of Jesus
(Acts 4:12).
Another unscriptural Masonic doctrine is salvation by works. Masonic literature is replete with references to being justified before God by our works. For example, in the Kentucky handbook quoted previously the lambskin apron worn by Masons is described as a reminder “of that purity of life and conduct which is essential to gaining admission to the Celestial Lodge above, where the Supreme Architect of the Universe presides” (Monitor, p. 32)
A third unscriptural posture of Masonry is its treatment of Jesus. Jesus in not exalted in Masonry. The Kentucky handbook lists only one reference to Jesus in the index, and it is indirect. Masonry focuses on “The Great Architect of the Universe” who can be defined any way the worshipper wants to define him. In the Kentucky handbook there are dozens of prayers for every conceivable thing from the dedication of halls to
the internment of a body. Not one prayer in the book is offered in the name of Jesus, yet the Word of God says that Christians are to offer all prayers in Jesus’ name
(Colossians 3:17)....................”
http://www.gospeloutreach.net/christmason.html