I recently deleted one of the empty sub folders in my "Contact" list. "All" my contacts (and folders) went away in the Cardbook! I tried to restore from my "iphone", icloud account which worked last time I did this in 2021 but not this time. icloud says it did the "Restore" but there is nothing in the contact list yet. icloud said it might take 24 hrs to show but it has been almost 2 days now and still nothing. I am not very computer or Mozilla savy I hate to say so that is the extent of what I can figure out to do. In a tab, "Address Book" there are a bunch of addresses that were 'Collected' but most of those I don't recognize and don't know where they came from, for what that is worth. I have the latest Thunderbird Version on the computer. I have all the "missing contacts" in my iphone which is the only place this info is left. For whatever reason, I can't get it restored this time! I hope I have given enough info to help? Thank you for any assistance you can give me! Al