1

This question already has an answer here:

Anyone know why this happens and how to make it show only one instance of each?

Multiple instances

marked as duplicate by bassplayer7, user151019, nohillside, bmike Feb 17 '13 at 14:21

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

2

From the comments, I was able to resolve this using the following command:

/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user

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