I am fairly new to Thunderbird, so looking for ideas on how I can accomplish this. Please don’t flame. 😊 I have calendars and contacts in iCloud and Google. These were synchronized to Outlook on my PC. Any changes made in any of these three (3) were synchronized to the others. Now that Thunderbird has replaced Outlook, I am looking for the same functionality. I have iCloud and Google calendars and contacts synced to Thunderbird, and updates show up on Thunderbird. Sadly, not across to the other platform, ie. iCloud updates to Google or vice versa. Any suggestions on how I may get this setup would be much appreciated. Thank you in advance. Regards. Pradeep.