Sputnik is a Firefox extension focused on security and privacy, offering users robust tools for searching IPs, domains, file hashes, and URLs through various Open Source Intelligence (OSINT) resources. By enabling a right-click context menu, users can effortlessly access relevant OSINT tools without disrupting their workflow, making it a valuable resource for efficient information gathering. This functionality is especially useful for those who require quick access to investigative tools while remaining within their current browsing session.

The extension supports a wide range of artifacts, including links and multimedia, ensuring that users can address diverse data investigation needs. Artifacts can be easily copied to the clipboard for further use, and users are provided with an updated list of OSINT resources alongside the extension's code available on GitHub. However, it should be noted that the context menu features are not supported on Firefox for Android, which may limit usability for mobile users.