The org-export-with-broken-links option was introduced in order to allow exports to proceed when a link isn't able to be resolved. Sometimes this happens when trying to export a narrowed region of a buffer.
I have noticed, however, that even if I have (setq org-export-with-broken-links 't), I am still unable to export a narrowed buffer that contains a footnote reference ("Definition not found for footnote..."). Is this behavior intentional? If so, is there a way to get the same effect as org-export-with-broken-links for footnotes? Regards, Mark