When I download a PDF file, Firefox saves it in the downloads panel. This is fine, except when I right click to "Show in folder" this option has disappeared and the top option is "Open in System Viewer". I never want to open it in a system viewer because I've already been viewing it in the browser and I ever only download it so I can read it later. My problem is, most of the time I end up clicking this option by mistake and hence have to go through a lengthy process of closing the viewer, opening Windows Explorer, going to the downloads folder and then moving the pdf to the folder I want to save it to on my file system. My question is, how do I stop the context menu changing so it always has the "Show in folder" option at the top? If this isn't possible, can I configure Firefox to open Windows Explorer instead of the download panel?