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I'd like to know, does Firefox store temporary files anyplace
other than Windows temporary folders?

These are the only related settings I know about.

about:config

browser.cache.disk.parent_directory

browser.cache.memory.enable

But, apparently nothing is stored in the "parent directory".

Any other settings I should know about?

I would like to redirect all Firefox temporary storage to a
specific location. A good start would be seeing some file
creation, someplace.

Thanks.

As you might guess, I have done some research on this already.

Just doesn't make sense, that no files would appear in the folder.

Or maybe they are considered hidden system files?