Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I was running the Tweetbot for Mac Beta, and still had it installed when I installed the full release from the Mac App Store.

Now I have 2 entries in my preferences for Notification Center, and I don't know which is which. I have removed the Beta application, and only have the real thing installed, but oddly whereas the Beta had the 'Egg" icon rather than the bird, both set of preferences use the bird icon.

Where does this preference pane get it's information about installed applications? How can I remove an app from the list?

enter image description here

share|improve this question
I too have this issue. I've even tried deleting Tweetbot, but one of the icons still remains. Most likely the beta one. I don't know how to get rid of it. – Jako Nov 8 '12 at 16:11
up vote 1 down vote accepted

Open terminal and run this command:

/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -domain local -domain system -domain user && pkill Finder

Or, if you have OnyX utility app, go to "Maintenance" > "Rebuild" > check on "LaunchServices" (leave the other options unchecked) > execute

share|improve this answer
I am using OnyX 3.1.6 and it didn't work. Did it two times, no luck. – Bruce Wisz May 16 at 15:39

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.