Come on, browsers, please.
You know the proper property order.
It has even been (recently) standardized.
You even print it correctly in the short preview.
Why ruining it all in the long detailed version?
Maybe the object has hundreds of properties and
the user might prefer them sorted, granted.
But please give us choice regarding that.
Add a tiny small icon to change the order,
just like Chrome does to warn the values
might have changed in the meantime.