Syncing Calendar with Mozilla Lightning/Sunbird

To sync your Yahoo! Calendar with Mozilla Lightning/Sunbird:

1. Go to Mozilla Lightning/Sunbird.
2. Select File | New Calendar.
3. Select On the network.
4. Click Next.
5. Enter this URL: https://caldav.calendar.yahoo.com/dav/your_username/Calendar/your_calendar_name
   - Note: Substitute your own information for "your_username" and "your_calendar_name".
6. Enter your Yahoo! ID:
   - If your Yahoo! ID ends in "@yahoo.com": Enter only the beginning part without the "@yahoo.com".
   - If your Yahoo! ID does not end in "@yahoo.com": Include the full email address as your Yahoo! ID.
   - Some examples of Yahoo! ID/addresses that do not end in "@yahoo.com": "@ymail.com" or "@yahoo.fr".
7. Enter your password as requested.
   - Note: Your password is the same one you use to sign in to Yahoo! products such as Yahoo! Calendar and Yahoo! Mail.