How to restore default sharing extension under Yosemite OS X Yosemite introduce few extensions like sharing extensions. With some defaults one like share with Apple Mail, iMessage, ... but today thoses extensions are missing for me. Is there's any knowed way, even with CLI to restaure them ?
run /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -seed