OS: Win 7 Enterprise x64 Browser: Firefox 3.6.21 I am trying to prevent Firefox from deleting files which I download using the Download Manager using the "open with" (rather than "save as") option. These files remain in my folder, C:\Users\<NAME>\AppData\Local\Temp until after I close Firefox at which point they are deleted. Note: I am sure it is Firefox (or perhaps Windows) which is deleting the files since: * I have disabled my antivirus and related programs (Malwarebytes real time protection) * I can see the file disappear from the \Temp folder a few seconds after Firefox is closed down * when I terminate the Firefox process via the task manager the file deletion does not occur Some other comments: * I do not believe this is influenced by the Tools>Options>Privacy settings, but I have set it to "Use Custom Settings for History" and unchecked "Clear History when Firefox Closes" * I have experimented with various settings in about:config (privacy.clearOnShutdown.* options are all set to false) * files downloaded during previous sessions are not removed from \Temp when the browser is closed (so if I terminate Firefox via task manager it will not be removed when I exit again later) Does anyone have suggestions on options to change to prevent files from being expunged from my \temp directory?