The Catholic Church teaches that the Pope and the Church are infallible (click here for Catholic source), yet the present Pope created a problem for the believability of that doctrine by disagreeing with previous popes, making a very official statement in the process.  While proclaiming a public sermon, Pope Francis declared that even athiests can be saved if they behave well, while previous popes have declared that even Protestants will be condemned because they are not part of the official Roman Catholic Church.

Here's what Pope Francis said, as quoted in the Huffington Post on May 22nd  ,

“They complain,” the Pope said in his homily, because they say, “If he is not one of us, he cannot do good. If he is not of our party, he cannot do good.” And Jesus corrects them: “Do not hinder him, he says, let him do good.” The disciples, Pope Francis explains, “were a little intolerant,” closed off by the idea of ??possessing the truth, convinced that “those who do not have the truth, cannot do good.” “This was wrong . . . Jesus broadens the horizon.” Pope Francis said, “The root of this possibility of doing good – that we all have – is in creation”....

"The Lord created us in His image and likeness, and we are the image of the Lord, and He does good and all of us have this commandment at heart: do good and do not do evil. All of us. ‘But, Father, this is not Catholic! He cannot do good.’ Yes, he can... "The Lord has redeemed all of us, all of us, with the Blood of Christ: all of us, not just Catholics. Everyone! ‘Father, the atheists?’ Even the atheists. Everyone!".. We must meet one another doing good. ‘But I don’t believe, Father, I am an atheist!’ But do good: we will meet one another there.”

and here's what previous popes have said,

• Fourth Lateran Council (1215): "There is but one universal Church of the faithful, outside which no one at all is saved."
• Pope Boniface VIII, Bull Unam sanctam (1302): "We are compelled in virtue of our faith to believe and maintain that there is only one holy Catholic Church, and that one is apostolic. This we firmly believe and profess without qualification. Outside this Church there is no salvation and no remission of sins, the Spouse in the Canticle proclaiming: 'One is my dove, my perfect one. One is she of her mother, the chosen of her that bore her' (Canticle of Canticles 6:8); which represents the one mystical body whose head is Christ, of Christ indeed, as God. And in this, 'one Lord, one faith, one baptism' (Ephesians 4:5). Certainly Noah had one ark at the time of the flood, prefiguring one Church which perfect to one cubit having one ruler and guide, namely Noah, outside of which we read all living things were destroyed… We declare, say, define, and pronounce that it is absolutely necessary for the salvation of every human creature to be subject to the Roman Pontiff."
• Pope Eugene IV, Cantate Domino (1441): "The most Holy Roman Church firmly believes, professes and preaches that none of those existing outside the Catholic Church, not only pagans, but also Jews and heretics and schismatics, can have a share in life eternal; but that they will go into the "eternal fire which was prepared for the devil and his angels" (Matthew 25:41), unless before death they are joined with Her; and that so important is the unity of this ecclesiastical body that only those remaining within this unity can profit by the sacraments of the Church unto salvation, and they alone can receive an eternal recompense for their fasts, their almsgivings, their other works of Christian piety and the duties of a Christian soldier. No one, let his almsgiving be as great as it may, no one, even if he pour out his blood for the Name of Christ, can be saved, unless he remain within the bosom and the unity of the Catholic Church."
• Pope Boniface I, Epistle 14.1: "It is clear that this Roman Church is to all churches throughout the world as the head is to the members, and that whoever separates himself from it becomes an exile from the Christian religion, since he ceases to belong to its fellowship."

Pope Eugene IV's comments would include Protestants under the term "heretics and schismatics", as well as those belonging to The Real Catholic Church, a group that broke away from the Roman Catholic Church on various grounds.

Shalom,

Joe