Save Accept settings from Webbrowser control

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C#

WebBrowserControl

Hi,
i create a simple webbrowser and navigate to an URL with an embedded plugin. The plugin shows me an dialog who i can choose between installation and sign in. If i make my choice the browser opens the url and all is fine. But this happens at every time i visit this url.
If i do the same with the internet explorer i have to decide only one time and the IE is saving this somewhere. how can i do the same with the webrowser control?
I am using C# and Visualstudio 2013 .net 4.5


Thanks for help :-)