Hello, If I open a PDF from the downloads section of this page: [https://www.maschinenbau.rwth-aachen.de/cms/Maschinenbau/Studium/Im-Studium/Praktikantenamt/~ffnv/Anerkennung-des-Praktikums/ example pdf] (all the way at the bottom) I get a popup asking "What should Nightly do with this file?". I always want to open the pdf in the browser, that's why I checked the box next to "Do this automatically for files like this from now on.", however I keep getting the same popup over and over again. This only happens for some links (e.g. the one I provided). Is there any way to open *all* PDFs by default in Firefox? Thanks in advance.