Before getting the uninstall command from the registry I installed firefox 62.0.2.6837. Then I created a silent uninstall script which works great. Now I'm trying to create a silent install script. The /S parameter does not kick off the setup, but the -ms does. However, it does not install silently because the setup keeps telling me that I'm reinstalling Firefox and it asks if it needs to clean up old data for a fresh/clean experience. How do I supress this message for a completely silent (re)install? Thank you for any help in advance.