Temporary Mobile View is a Firefox extension designed for web developers and testers who need to view websites in their mobile formats. This tool allows users to easily toggle between the desktop and mobile versions of any website that supports it, with the option to select different device profiles such as Android, iOS, and Kindle through a convenient right-click context menu. The user-agent strings for these devices are pre-configured, simplifying the testing process for developers.

In addition to its core functionality, Temporary Mobile View offers the flexibility to insert custom CSS rules during the mobile view session. This feature can be particularly useful for adjusting the browser's window width or modifying font settings to better suit the mobile display. Users can effortlessly revert to the desktop view by refreshing the page, making this extension a practical tool for anyone involved in web development and design.