HTTP Status Code is a Firefox extension designed to enhance web development by providing real-time visibility of HTTP response status codes directly on the browser's badge icon. This tool is particularly useful for developers and IT professionals who need to quickly assess the status of web pages they are working on or testing. By displaying status codes such as 200, 404, and 500, users can easily identify and troubleshoot issues without navigating away from their current workflow.

The extension operates on a subscription-based model, making it accessible for ongoing use. It integrates seamlessly into the Firefox browser, ensuring that developers can stay informed about the status of their web applications as they browse. This utility not only streamlines the development process but also enhances productivity by providing immediate feedback on server responses.