macOS defaults

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Disable application quarantine message ​

Turn off the “Application Downloaded from Internet” quarantine warning.

⚠️ Stopped working on Big Sur.

  • Tested on macOS:
    • Catalina
  • Parameter type: bool

Set to true (default value) ​

"Application Downloaded from Internet" popup will display

bash
defaults write com.apple.LaunchServices "LSQuarantine" -bool "true"

Set to false ​

"Application Downloaded from Internet" popup will not display

bash
defaults write com.apple.LaunchServices "LSQuarantine" -bool "false"

Read current value ​

bash
defaults read com.apple.LaunchServices "LSQuarantine"

Reset to default value ​

bash
defaults delete com.apple.LaunchServices "LSQuarantine"