I deleted the CloudTabs.* files in the Library/Safari directory, three of them, and when I started Safari again the phantoms came back. Are there any other steps to do?If it's on an iPhone or iPad, sign out of iCloud, reboot, and then sign back in. If it's on a Mac, then delete the CloudTabs.* files in the Safari directory.
BTW - I have done the "Sign out of iCloud", the problem is that takes a while to recover from - depending what you have in iCloud, tons of photos have to repopulate, and other data as well. If this was a one-time occurrence great, but after working fine for a while it always seems to come back - so just signing out of iCloud all the time has it's pain point oo.