Three.js Developer Tools is a Firefox extension designed for web developers creating three-dimensional environments. This tool integrates with the browser's inspection system, allowing users to explore the hierarchy of virtual scenes, including geometric assets, camera angles, and lighting sources. By presenting complex code as an interactive visual tree, it enables creators to isolate and understand object relationships in real-time, enhancing the development process.

In addition to visualization, the extension serves as a live editing dashboard, allowing adjustments to textures, reflectivity, and colors without page reloads. It also monitors rendering performance metrics, helping identify bottlenecks and optimize experiences across various devices. With its comprehensive insights, Three.js Developer Tools empowers developers to create visually stunning and efficient interactive web applications.