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Downloaded file get deleted when i tap Quit option from the menu,Why?

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Yesterday i downloaded 200MB video file and played it from Firefox. It worked. Then i Quit the Firefox from the Menu Option. File get deleted do not know why?

Yesterday i downloaded 200MB video file and played it from Firefox. It worked. Then i Quit the Firefox from the Menu Option. File get deleted do not know why?

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This is normal for files that Firefox downloads and displays in a separate application. For details, see: https://bugzilla.mozilla.org/show_bug.cgi?id=191239

To change this, you can:

  1. Type "about:config" in the Firefox location bar and press enter/return.
  2. Right-click or control-click anywhere in the about:config page, and choose "New > Boolean" from the menu.
  3. For the preference name, enter "browser.helperApps.deleteTempFileOnExit"
  4. For the preference value, choose "false"

For more detailed instructions for the about:config screen, see http://kb.mozillazine.org/About:config