Permanent Inspect Element is a Firefox extension designed for web developers and designers who seek to make temporary changes permanent. This subscription-based tool allows users to save modifications made through the inspect element feature directly in their browser. It enhances the traditional inspect element functionality by enabling users to apply and retain style changes across page reloads, making it a valuable asset for testing and prototyping web designs.

The extension is categorized under Development & IT, specifically focusing on web development. Its intuitive interface simplifies the process of saving and applying CSS changes, which is particularly useful for developers looking to streamline their workflow. With Permanent Inspect Element, users can effectively manage and showcase their design iterations without the need for extensive coding or external tools.