I'm not liking the new WebExtensions design at all. I really hope you find a way around it. It just doesn't look any good at all anymore without being able to have the forecast days and satellite in the status bar.

I would say that while Firefox may be getting rid of xul stuff, there are other browsers like Waterfox which will continue to support both. It might not be a bad idea to at the very least enable users to use the xul stuff if their browser still supports it.

Don't get me wrong, this is probably my favorite and most critical add-on. That's why I'm even bothering to leave feedback. I never do.