New
#11
In general, as Denis mentioned, you shouldn't be going through a "File Upload" dialog to browse and manage your downloads. You should be going directly to that folder using File Explorer (or any other file manager).
However, I'm curious how you're getting that dialog in the first place. I would only expect to see a "File Upload" dialog when I go through a file upload procedure on a website. For example, to paste a screenshot here I have to upload an image (since, ahem, this forum doesn't support image copy/paste). When I click the "Insert Image" icon and then select "Browse", I get this dialog in FireFox (which has "All Files" enabled):
I'm not a FireFox user (I only installed it to run this test) so maybe there's a setting to override what the website requests, but my understanding is that the file filter on a "File Upload" dialog is controlled by the "Accept" attribute on the web page file upload element you click. So please let us know what you clicked to get the file dialog shown in your screenshot.