Love this application, great work mate.
Something that I think would be really hand is the ability to pass parameters when calling up the browser exe. Chrome in particular seems to use this a lot.
Eg. To launch chrome with proxy settings turned off, you set a shortcut for
Useful in a corporate environment depending on what you're trying to do. Incognito mode, and probably other features work the same way. I don't see a way to do this within the app, correct me if I'm wrong!