I can't share any files, but rather than saving to my downloads folder, I've found the app is downloading to the folder I had intended to move the files to. The issue is that the naming structure of the files is based on the week/day. So if it's Monday of the first week of the month, it would be Mon-1. When downloading another Mon-1 to the downloads folder, I'd get Mon-1(1), which is exactly what I want. When I use my file browser to move them, it also renames the new file to Mon-1(1), perfect. If I download Mon-1 and this issue occurs, Mon-1 will overwrite the existing Mon-1 in my reports folder. Now I have reports from all different months in my January section with January just about wiped from my phone. I have changed everything but Firefox and the phone and the issue still occurs, so I can only assume it's either an android issue or a Firefox issue.