Say you download a rar file. firefox builds the file first in C:\windows\temp as it download to completion. Then FF COPIES this file to the destination folder which could be on another drive. BUT FF never deletes this temp-file in c:windows\temp after copying. And you can NOT delete this file temp-file until you close FF. Deleting browser history temp files using ctrl-shift-del does not work. Why is this? Say I download many rar files at once. After each file completes firefox cCOPIES them to the destintaion directory. Again they go to another drive. BUT FF never deletes the temp-files form c:\windows\temp after completion of download and copying to the destintaion folder. UNLESS you close firefox. Meanwhile this can clog up my small SSD drive which is only 20GiB Need workaround please?