Okay, imagine you're walking around a big store with your mom. Sometimes, the store workers might follow you around and watch what you're looking at or putting in your cart. They do this to learn more about what you like and maybe make suggestions for other things you might want to look at or buy.
On the internet, companies called "trackers" do the same thing when you visit websites. They follow you around and watch what you click on, what you buy, and even what you type. They do this so they can learn more about you and show you ads that they think you might like.
But sometimes, you might not want these trackers following you around and learning all about you. That's where Ghostery comes in! Ghostery is like a magic cape that you can wear when you're on the internet. When you wear it, it hides you from the trackers so they can't see what you're doing or learning about. It's like you're a ghost that they can't see.
This makes it so that the companies can't use your information to show you ads or learn more about you. And if you're a grown-up who's worried about their privacy on the internet, you might want to wear Ghostery to keep your information safe.