Is there a way to prevent LaTeX from splitting long footnotes across multiple column/pages?

Question

I am using LaTeX and in some cases have multiline footnotes.

When I use a two-column format and especially when the reference to a footnote is low in the column, LaTeX will often split the footnote in half: it starts in the original column, but then continues under another column (sometimes in another page), which is very distracting.

Is there a way to force LaTeX to never split footnotes and allocate enough space for them?

Answer 1

Use \interfootnotelinepenalty=10000 to totally disallow this. But be prepared for other layout artifacts... Setting the penalty lower than 10000 will give TeX some flexibility in deciding when the side effects are too bad to bear.

For a detailed discussion see the TeX FAQ item Why does LaTeX split footnotes across pages?