Rated 1 out of 5 stars

I can't set any of its features up (in theory I don't know what FxClickOnce actually does).
There is no "Options" window.

Since then, I can't see what's the advantage of this add-on against the ugly Microsoft version of .NET Framework assistant.

Sorry, but... I'll stick with old FFClickOnce (forcing compatibility with Add-On Compatibility Reporter).

There is no 'options' window because it doesn't have any. When you access a ClickOnce manifest, it gives you an option to ClickOnce Install. That's all it does - as per the description.