How can I reduce the amount of time before a macOS / OS X Notification Center banner dismisses itself?


Open your terminal and run this command

defaults write com.apple.notificationcenterui bannerTime SECONDS

where SECONDS is a number for how many seconds you want the banner to be displayed.

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Currently, you cannot change the duration. But you can dismiss it manually by placing the cursor over the banner and doing a two finger swipe from left to right on a trackpad (or a one finger swipe on a magic mouse).

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    Bummer. Maybe I go plist digging if I have some free time later. – Ram Nov 5 '13 at 17:11

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