Comment 1 for bug 1066177

Persona/BrowserID doesn't really offer a widget, because all that's needed is for webapps to call "navigator.id.request()" or "navigator.id.get()" when the login button / link is clicked. So all that's provided are sample buttons that people can use:

  https://developer.mozilla.org/en-US/docs/persona/branding

To solve this bug, perhaps what's needed is:

1. marking the button as disabled in the HTML (ideally it would be grayed-out too)
2. when the page is done loading, mark the button as enabled

That way, users with Javascript disabled won't try to use that button.