I noticed that in my Notifications system preferences there two entries for Twitter (the old one with the white icon) and the new one.

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The old Twitter application is long gone. How can I remove obsolete entries in the list?

3 Answers 3


I can't say for certain if this trick will work on older macOS versions, as I no longer have access to them. But, in High Sierra 10.13, you can just left-click once to highlight the offending entry, then tap the <DEL> key (not backspace, forward-delete) to remove it.

  • 2
    Or fn+delete on a laptop keyboard. Dec 15, 2018 at 1:56
  • I just tried normal backspace and it works. "delete" also works. They both work. :) Running 11.3 on a MBP.
    – musiKk
    Apr 30, 2021 at 13:15

I have two entries too, but they are not old and new. One is Twitter App, the other is system "build-in", this Twitter account for share(for example, click share button on Safari you can see it) and many other things.

You can check, "System Preferences"->"internet account".

  • This is probably right, since I do not have any Twitter app, but I have a Twitter account set in Preferences and I see Twitter in Notifications prefs. Jan 23, 2015 at 16:42

If you click on the Help Center (?) icon (lower right of the Notifications pane), it says: To remove an app, drag it to the Not in Notification Center list.

Apps can be rearranged in the Notification Center by dragging them up / down in the list. 'Not in Notification Center' is at the bottom of the list. drag the app(s) you don't want to the very bottom, until you see a horizontal line appear beneath Not in Notification Center, then release. i'm not sure, however, if this will permanently remove the app from the list of apps in the Notification Center.

  • 1
    I was wandering how to make the notification center not to show uninstalled applications (regardless if in the first or second list)
    – Matteo
    Jan 25, 2015 at 10:14

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