This document summarizes user testing of an extension called UnSubMe, which helps Gmail users organize their inbox by preventing unwanted emails and archiving or deleting emails from specific senders. It conducted tests with 5 users over 30 minutes each to evaluate features like archiving senders, deleting emails, and a help menu. Users found the extension easy to use and intuitive and appreciated the warning before deletion of emails. The testing supported the product's goal of allowing users to clean their inbox of unwanted emails with one click.