Over the last couple months I've been experiencing issues where firefox will randomly download a 0 byte .html file (when using linux, .htm when using windows) The filename always consists of 8 alphanumeric characters along with - and _ Sample filenames: 0cvVbGQw.html I3RDa91Y.html oZYheHGy.html _qe3DE2e.html t2PU-0gd.html The main website I experience it on is https://babylonbee.com particularly when going from the front page and click on the trending tab before the website is fully loaded, but it happens on other sites as well, which matches what other people have reported notably in /questions/1374097 When looking at "Show all downloads" it shows up as WZvNfc6k.html 0 bytes -- moz-safe-about resources -- 19:29 Using troubleshoot mode does not prevent the issue, nor does setting dom.security.https_only_mode_send_http_background_request = false In about:config The issue can be replicated on a clean win10 vm with a fresh Firefox 103 install and no extensions/themes which is consistent with what other people have said on the Firefox subreddit having uBlock origin installed does not appear to make any difference I will keep an eye on my the thread in case any more details or actions are needed to determine the cause of the issue