The "print preview" and "print" functions of Firefox fail very badly on some web pages even though Firefox displayed those pages properly. When print preview is applied to a web page with enough content to require a few or several printed pages, preview may only show the first page of the print job and printing only prints this single page. The problem is not always fixed by tricks such as selecting all and printing the selection. This is an old problem that I understand was scheduled about two years ago to be fixed in the "next" version. Wasn't that several versions ago? To see examples of the problem, try print preview or "Print to File" on the following two web pages. https://www.panamintcity.com/backpacking/panamintbackpacking.html http://cnx.org/contents/Ax2o07Ul@9.77:RCFtg_5-@7/Rotation-Angle-and-Angular-Vel This problem is serious for students, educators and people forming contracts on-line.