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I have Big Sur, and now iMessage and Mail don't show up on my share sheet. WHen I go to System preferences/extensions/Share Menu, neither Messages nor Mail are listed at all. Can you help me get those extensions back?

I have Big Sur, and now iMessage and Mail don't show up on my share sheet. WHen I go to System Preferences/Extensions/Share Menu, neither Messages nor Mail are listed at all. Can you help me get those extensions back?

MacBook Pro 15″, macOS 11.2

Posted on Apr 2, 2021 9:12 PM

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Question marked as Top-ranking reply

Posted on Apr 4, 2021 10:42 AM

Boot into Safe Mode according to Start up your Mac in safe mode - Apple Support and see if the problem persists. Reboot normally and check again.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


Similar questions

5 replies
Question marked as Top-ranking reply

Apr 4, 2021 10:42 AM in response to PJRemps

Boot into Safe Mode according to Start up your Mac in safe mode - Apple Support and see if the problem persists. Reboot normally and check again.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


I have Big Sur, and now iMessage and Mail don't show up on my share sheet. WHen I go to System preferences/extensions/Share Menu, neither Messages nor Mail are listed at all. Can you help me get those extensions back?

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