If multiple plug-ins/extensions need to be loaded automatically at the same time, how to set the parameters?

1.Automatically add the plugin to a new configuration file -> MuLogin client -> System Settings -> Preferences -> Customize the startup browser parameters -> Add the local path of the plug-in/extension and save it.
2.Manually add the plugin to the browser -> Browser List -> Edit Browser -> Other Configurations - > Customize the startup browser parameters -> Input the local path of the plug-in/extension and save it.
For example:
--load-extension="D:\CookieEditor,D:\MyPlugin"  --start-maximized