How do I enable and use Form Fills in Firefox Nightly?

[mkohler (Michael Kohler)]

@orschiro

What can I use to make auto-fill work there?

I think the first step would be to figure why the email field doesn’t work. Then this could maybe be changed by a WebExt, but I’m not sure how general input fields are handled in Google Forms and if that is general enough to do it for all Google Forms.