Similar to being able to utilize the OS's built-in file and print dialogs, it would be good to allow Mac users to use the built-in spelling and grammar checker, as it is utilized by all Mac applications. https://developer.apple.com/library/prerelease/mac/documentation/Cocoa/Reference/ApplicationKit/Classes/NSSpellChecker_Class/index.html
*** This bug has been marked as a duplicate of bug 71693 ***