Here are two ways you can turn off candy crush notifications. The first way will block notifications but still allow you to play Candy Crush. The second will completely block notifications and prevent the app from being able to access your information in which case you will no longer be able to play the game without first unblocking it.
Turn Off Candy Crush Notifications (and still be able to play)
When you get a Candy crush notification hover over the little x in the top right with your mouse and click to turn off any future notifications. You should no longer be receiving any Candy Crush notifications from your friends.
Ban the Candy Crush App Completely (will not be able to play until you unblock it)
1. Click the down arrow button () on the top right of any Facebook page.
2. Select “settings”
3. Choose “blocking” from the left side menu
4. Scroll down to the “Block apps” section, type in “Candy Crush” and select it from the list.
That’s it, you’re done!
Remember to unblock it if you ever want to play Candy Crush again.