Tip 211Turn Off Download “Quarantining”

Whenever you download a file using a web browser, your Mac might warn you when you first open it that it could be dangerous because it’s from an unidentified source. It’ll tell you when you downloaded it and from where. This is known as quarantining and can get annoying after a while, especially if you download files only from sources you know are safe.

Qurantining is separate from the Gatekeeper feature of OS X (see Tip 50, Install Any App Without Being Blocked), which means that even if you bypass Gatekeeper’s warnings, you’ll be warned a second time because of the quarantining feature!

To permanently turn off quarantining, open a Terminal window (open Finder, select the Applications list, and then ...

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