Open Facebook and go to your profile
Tap or click Friends
Check your friends list for missing names
Search the person’s name in Facebook search
Visit their profile and look for Add Friend instead of Friends
Check your Activity Log for friend-related changes
Review your notifications for friend removal or unfriending activity
Use a browser extension or third-party tracker only if you trust it and understand the privacy risks
Compare your current friends list with an older saved list if you have one