If, like me, you use FB simply because it's the only way to keep track of people who no longer use email, FB Purity is going to make it so much easier for you. No ads, no pop-ups, no bother, none of those stupid "how are you feeling" pushes. No "you should like this" or all the other garbage FB puts up, because YOU control what you see.
It lets you limit your feed to just the people you want to see, the interests you want to follow, and the causes you care about. Hate cat videos? Block them! Don't want political rants? Done!
I can't say enough good things about FB Purity - it has made the insidious FB almost bearable. You should get it now - and if you can donate, all the better!