catalinamacosprivacyscreen-sharingsystem-prefs
I'm using macOS Catalina and I want to use screen sharing in Slack. But when the permission prompt came up I accidentally clicked Deny because it was the default option.
Now I can't get the prompt to come up again. How can I reset permissions so that the prompt comes up again?
You can reset the screen recording permissions for QuickTime Player using tccutil:
tccutil reset ScreenCapture com.apple.QuickTimePlayerX
After running this command, you need to quit QuickTime Player (if it was open). Then open QuickTime Player again and choose "New Screen Recording..." from the File menu. That will cause the prompt dialog to pop up again so you can grant permission for Screen Recording.
You need to use tccutil to manage the privacy database -- this involves opening the Terminal and using the command line! Here's how to do it for QuickTime Player:
tccutil reset Camera com.apple.QuickTimePlayerX
tccutil reset Microphone com.apple.QuickTimePlayerX
You might need to reset Camera or Microphone permissions for other apps too. If you know the bundle ID of the app you're trying to use, you can use this command:
tccutil reset Camera [com.WHATEVERBUNDLE.YOURAPPID]
tccutil reset Microphone [com.WHATEVERBUNDLE.YOURAPPID]
Safari
tccutil reset Camera com.apple.Safari
tccutil reset Microphone com.apple.Safari
Mozilla Firefox
tccutil reset Camera org.mozilla.firefox
tccutil reset Microphone org.mozilla.firefox
Google Chrome
tccutil reset Camera com.google.Chrome
tccutil reset Microphone com.google.Chrome
Slack
tccutil reset Camera com.tinyspeck.slackmacgap
tccutil reset Microphone com.tinyspeck.slackmacgap
If you're running macOS Mojave (10.14) or if you just don't know the app bundle ID, then you'll need to reset Camera and Microphone permissions for all applications. This will remove any other apps that have been granted permission in the past, so you'll get prompted again by other apps.
tccutil reset Camera
tccutil reset Microphone
Once you've reset the camera and microphone permissions, you must quit your application before the change will take effect. Then you can restart your app and try using camera or microphone again, and the prompt should reappear.
Help, it's still not working!
Make sure that System Integrity Protection is enabled, otherwise these commands won't work correctly. To check, you can run csrutil status and it should say System Integrity Protection status: enabled.
Best Answer
You need to use
tccutilto manage the privacy database -- this involves opening the Terminal and using the command line! If you know the bundle ID of the app you're trying to use, you can use this command:Here are some examples for common applications:
tccutil reset ScreenCapture com.apple.SafariSafaritccutil reset ScreenCapture org.mozilla.firefoxMozilla Firefoxtccutil reset ScreenCapture com.google.ChromeGoogle Chrometccutil reset ScreenCapture com.apple.QuickTimePlayerXQuickTime PlayerIf you're trying to use screencapture on the command line, your terminal application needs to be granted permission.
tccutil reset ScreenCapture com.apple.TerminalTerminaltccutil reset ScreenCapture com.googlecode.iterm2iTerm 2If you don't know the app bundle ID, then you can just clear and reset the privacy settings for ScreenCapture for all applications. Note that this will remove all entries from the list of apps allowed to do Screen Recording, and you'll have to re-add them individually.
Once you've reset the privacy permissions, you must quit your application before the change will take effect. Then you can restart your app and try screen recording again, and the prompt should reappear.
Help, it's still not working!
Make sure that System Integrity Protection is enabled, otherwise these commands won't work correctly. To check, you can run
csrutil statusand it should saySystem Integrity Protection status: enabled.You can also try creating a new user account with admin privileges and setting up the Screen Recording permissions in that account. That sometimes helps to put the TCC database back in a good state. This seems to be useful in some cases where the prompt window just isn't shown at all.