On Tue, 31 May 2022 22:52:16 +1000 Eyal Lebedinsky <fedora(a)eyal.emu.id.au&gt; wrote: > firefox 100.0.2 > > I set up a temp dir in about:config > browser.cache.disk.parent_directory /data/Firefox_temp > At no point did I see any activity there but if I empty that > directory then FF creates it on launch, so it knows about it. You are setting up a personal directory under /? What permissions does it have? Are you running SELinux, what is its context? Wouldn't this be more appropriate in your home directory? I also don't find that setting in my about:config, in the system firefox or nightly. How are you creating it? > Here is what I do: > > Open the URL > http://www.gnu.org/software/gzip/manual/ > Click on > PDF file (304K bytes) > A popup asks "What should Firefox do with this file?" > - I have "always ask" set for this file type in > Settings/General/Applications at this point I see a new file in my > home directory -rw------- 1 eyal eyal 308839 May 14 17:33 > _qBdbX0t.pdf.part I now select > Open with xpdf > and click > OK > The above random file disappeared and another file appears > -rw-r--r-- 1 eyal eyal 308839 May 14 17:33 gzip.pdf > I now close firefox and this file remains. > I restart FF and it is still there. > > On another machine the file is created in ~/Download. > > How do I get FF to use the nominated directory? When I use the settings you are using, the file appears in the download directory I have selected in edit -> settings. It remains after I have viewed it, which I think is a questionable action. When I have the setting at open with firefox, the file doesn't appear anywhere, so it is probably in some temporary cache file that goes away when the tab is closed. So I guess the answer to your question would be to use edit -> settings -> general -> Dowloads to set /data/firefox_temp as your download directory.