Facebook has been tinkering with the formula that decides what posts you see.
The latest move, announced Thursday, is designed to focus on personal connections over published articles and videos.
In recent years, Facebook has added options to choose whose posts people see first and has combatted "clickbait," posts with grabby headlines like "you won't believe what happened next" yet ultimately disappoint. Facebook also has tweaked formulas to try to boost membership in "meaningful" groups.
The changes won't affect how often you see advertisements, or as Facebook calls them, "sponsored posts." However, you can tell Facebook not to show a particular ad again, and Facebook will stop showing you that and will show something else instead. Over time, Facebook will tailor the ads it shows you based on such feedback.