Friend Logger loads all of the users on your friends list, allowing you to view deleted users and users who have unfriended you. I quickly programmed this with the goal of being able to view the usernames of deleted users on my friends list, since Roblox still internally keeps track of that despite not showing it on the website? Please note that ROBLOX does not have any system to track friends. You must join the game frequently to keep your friend data updated.