HTTP Version Indicator is a Firefox extension designed for web developers and IT professionals. This tool adds a visual indicator in the address bar, displaying the HTTP version utilized to fetch the current webpage. It enhances the browsing experience by providing quick access to crucial information regarding web protocols.

This subscription-based extension simplifies the process of monitoring HTTP versions, making it easier for developers to optimize their websites. By clearly showing whether HTTP/1.1, HTTP/2, or other versions are in use, users can make informed decisions about performance improvements and compatibility. Ideal for those involved in web development, HTTP Version Indicator is a practical addition to any developer's toolkit.