Hello. Apparently the TbSync extension no longer supports CalDav calendars since its now native in TB. I have tried to follow the directions below but it fails to authorize TB. In step 8, which password (apple account or app specific) as its not clear which one to use? 1. Generate an app specific password by logging into your apple account and generate an new password for TB. 2. Open TB 3. Create a new calendar 4. Choose :On the Network" 5. Select "CalDAV" (does not appear in TB)? 6. Enter a username (the apple id in xxx@xxx.xxx format) 7. Enter a URL for the calendar ( https://caldav.icloud.com/test@gmail.com/calendars/calendar1/ ) 8. Enter the password for https://caldav.icloud.com/test@gmail.com/calendars/calendar1/ Any help here would be greatly appreciated. Thanks.