How to render new lines for placeholder in Firefox?

How to render new lines for placeholder in Firefox?

A textarea with a placeholder with new lines renders new lines correctly in Chrome/Chromium but not in Firefox 40. Here https://stackoverflow.com/questions/7189223/can-you-have-multiline-html5-placeholder-text-in-a-textarea is some background information on it but I was wondering if jQuery Mobile offers functionality to force the new lines. Is there and how can that be used? Or is this a feature request?