# Safelinks Cleaner MailExtension This project is a MailExtension that cleans up display of Microsoft Advanced Threat Protection Safe Links. * Displayed plain text links are replaced by the original link. * A tooltip is added to all rewritten links to display the original link. ## Development Documentation on add-on development: * https://developer.thunderbird.net/add-ons/about-add-ons Debugging Thunderbird extensions (ue Ctrl+Shift+I): * https://developer.thunderbird.net/add-ons/tips-and-tricks