Modify the while simulating a mobile viewport
What is Active_flash?
Active_flash is a Firefox add-on that enables users to modify the by simulating a mobile viewport. With this powerful tool, you can easily test and optimize your website's responsiveness and design for mobile devices.
Active_flash is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Active_flash if you trust the publisher.
Active_flash has earned a fairly good reputation and likely can be trusted.