Previous methods of using mozilla.cfg are no longer working. I need a way that I can automatically set the default search engine to Google when a new user logs into a Windows box and launches Firefox. I've been able to successfully do this via manually copying the search-related JSONs created in a user profile to other profile. However, there is no way for me to have that done automatically via Program Files. The required JSONS that specify the search engine are only create right as the user's Firefox profile is created on launch. I would like to avoid any fancy man-in-the-middle scripting to accomplish this. Any help please?