If I upload a file for an email attachment, google drive upload, etc when I first select "browse" for the file it opens File Explorer in the Desktop directory. How do I change that to default to the directory I always work from, say for example C:\tmp. I've seen numerous questions about this with answers that it opens the last directory used, which is true if I do it multiple times, but if I close Firefox and restart it, when I select "browse" it again defaults to the Desktop. I've also seen answers saying it is controlled by the site being uploaded true. Again this is absolutely not true. I do everything from C:\tmp. Downloads, uploads, editing, searching, etc. And every time I upload a file after starting Firefox fresh after a reboot, again, it defaults to the Desktop even though I'm on the same site (gmail) I was when I last uploaded a file. As far as the answers saying that was the last directory used, that is false. I do not use the desktop for anything. Not storing icons, not downloading files, not uploading files. I have never uploaded a file from Desktop in my life. So can anyone answer this without saying 'last directory used' or 'controlled by the website'?