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Is it possible to download files (deleted from my computer) by going to my download history, and doing something with that?

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I'm trying to recover a file from my computer. I downloaded some important work files off of an email and then idiotically deleted the email. I had them up until recently, but then my son deleted them (he's five and likes to play around with things). I know that Firefox has a download history, but is it possible to use that information to actually download the files again?

I'm trying to recover a file from my computer. I downloaded some important work files off of an email and then idiotically deleted the email. I had them up until recently, but then my son deleted them (he's five and likes to play around with things). I know that Firefox has a download history, but is it possible to use that information to actually download the files again?

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Download history usually will have the link back to the original source location. Assuming that still exists, it's worth a try. When you right-click (Ctrl+click) an item, the small context menu should let you copy the URL of the original source, which you then can paste into the address bar to fetch it again. If the original download required you to be logged in to the source site, you should log in again first to increase your odds of getting the download.

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The email was deleted, so the source link creates a Gmail error

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If the files were saved to a particular location, and deleted from there, they might still be in the trash bin.

Or if the files were opened directly without saving, they might still be in the system "temporary files" folder.

If neither of those is relevant, does Mac have a concept of unerasing a file? (I'm only aware of utilities for Windows.)