The package provides the environments footnoterange and
footnoterange*. Multiple footnotes inside these environments
are not referenced as (e.g.) "1 2 3" but as "1-3", i.e., the
range (from first to last referred footnote at that place) is
given. If the hyperref package is loaded with enabled
hyperfootnotes-option, then the references are hyperlinked.
(References to footnotes in footnoterange* environments are
never hyperlinked.)