Firefox about:config Entry —

Understanding the about:config Entry in Firefox

Firefox about:config download location

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This article is only intended for users running the Mozilla Firefox web browser on Linux, Mac OS X, macOS Sierra, and Windows operating systems.

about:config Entries is one of the hundreds of Firefox configuration options, or Preferences, accessed by entering about:config in the browser's address bar.

Preference Details

Preference Name —
Default Status — default
Type — integer
Default Value — 1


The Preference in Firefox's about:config interface allows the user to choose between one of three pre-specified locations in which to store file downloads.

How to Use

The value of can be set to either 0, 1, or 2. When set to 0, Firefox will save all files downloaded via the browser on the user's desktop. When set to 1, these downloads are stored in the Downloads folder. When set to 2, the location specified for the most recent download is utilized again. This path can be modified by selecting a different location the next time you download a file through the browser.

To modify the value of, follow these steps:

  • Open your Firefox browser
  • Type about:config in your browser's address (or URL) bar
  • Hit Enter
  • You may now receive a message warning you that any modifications could void your warranty. To continue, click on the button labeled I'll be careful, I promise!
  • A list of Firefox Preferences should now be displayed. Locate the entry with a Preference Name value of
  • Double click on this entry. A dialog box should appear prompting you to enter an integer value.
  • Enter the desired value (0, 1, or 2) and click on the OK button.