4 of 5Image
You will be warned about data collection. Chrome displays this alert for every userscript you install. Unfriend Finder only collects data about your Facebook friends list. Click Install.
If the script is successully installed, you will see a contextual dialog that says: "Unfriend Finder is now installed."
To get rid of the plugin, click on the Uninstall link in the same Extensions tab. You're done!