Client needed powerpoint viewer installed. I installed it, and she tried to open the file from a webpage in firefox, and tab after tab started opening, with nothing in them. anyone ever see that before?
Unless you installed a Firefox PowerPoint Viewer add-on, Firefox is probably not using the correct program to open Powerpoint files because the extension has the wrong program associated with it. Go to Tools>Options>Applications tab and check what program is associated with the file type trying to be open.