Missing line number on fist page.

[rvhani]

Im trying print some code, but i have no line number on fist page, on Firefox browser.
But on Chrome has line number.
Firefox has custom header, Chrome not while printing.

[mas-co]

I have the same issue, but with Firefox. No problems with the other pages, but the first one has no line numbers.

[tcouey]

Same issue. No line numbers on first page with Firefox.