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.)