Proxy Hunter & Tab Closer is a Chrome add-on designed to enhance compliance in educational settings by detecting and neutralizing proxy signatures and blob URLs. This tool addresses the challenges posed by modern web proxies and ensures that students cannot bypass restrictions set by institutions. It actively scans the browser for specific signatures used by proxies and terminates sessions that utilize these methods, effectively maintaining the integrity of the network's filtering system.

In addition to signature squashing, this add-on features aggressive measures to close about:blank tabs and prevent the use of hidden browsing techniques. It also includes anti-cloaking defenses to identify and close tabs that masquerade as legitimate educational resources. With a focus on privacy, Proxy Hunter & Tab Closer operates entirely on the local machine without collecting or transmitting any user data, ensuring a secure environment for students.