Hello When I download pdf files, it fails on most websites. I don't have this problem on the Google chrome app or on my computer Firefox. http://i3s.unice.fr/~deantoni/teaching_resources/SI4/FSM/index.php?path=cours/ Or https://file-examples.com/index.php/sample-documents-download/sample-pdf-download/ Or .... When I go there and download a pdf I can chose "continue with" Firefox or acrobate reader. It works with acrobate reader but fails with Firefox (load 5 minutes and then fails). https://lms.univ-cotedazur.fr/course/view.php?id=4314&section=1 When I go there (I think you don't have access to this website) and download a pdf it fails with both Firefox and acrobate reader (but works with chrome) https://support.mozilla.org/en-US/questions/1297466 I've read here that I am not the only one with this problem moreover I can't have access to about:config Oneplus Nord android 10 Firefox 82.1.1 Best regards