LiveHosts is a Firefox extension designed for web developers and IT professionals who need to test domain redirection without altering the actual hosts file. This tool allows users to redirect domains to specified IP addresses while adding a custom Host header. The functionality is reflected directly in the browser's address bar, enabling accurate testing and development scenarios. Users can see the hostname displayed right after the IP address, providing clarity on the redirection process.

With its user-friendly interface and straightforward setup, LiveHosts simplifies the often complex task of simulating hosts file changes. As a free tool, it is accessible to anyone looking to enhance their web development workflow. By utilizing this extension, developers can efficiently troubleshoot issues related to domain resolution and IP redirection in a controlled environment.