User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 Build ID: 20171107091003 Steps to reproduce: Let's make things clear. Firefox privacy related settings apply to Firefox _own_ data, which means that downloaded files saved to /sdcard/Download must be exempt. Also, the user might rename/move downloaded files anywhere else which means this privacy "protection" makes zero sense. Also, downloaded files might be recovered using direct access to the underlying media. In bug 1097619 you promised to change the wording in the settings and apparently you've never done that. If you're reluctant to leave downloaded files be, I'd suggest either changing the wording to "Downloads and Downloaded Files" or, if you're paranoid, introduce two options instead of one: "List of Downloads" and "Downloaded Files" which actually makes sense. Anyways I strictly prefer to go away with this madness because common sense says that downloaded files is not Firefox' prerogative and Firefox should not touch the files after they've been downloaded.

Most, if not all users expect to be able to actually use their downloaded files after quitting the web browser. Firefox clearly goes against this sentiment. The current behaviour must either be reversed or the wording must be changed to reflect the actual behaviour.