Thunderbird lost its most useful feature of sorting inside folders.

Some bubble-headed bimbo wiped out the columns inside folders, and deleted the headers - which deleted Thunderbird's ability to choose sorting by date or contact. This f'd it up so BADLY, that I find it USELESS now. I'm going to have to find some other email program. A 2nd way it was f'd up, is it now seems incapable of importing an existing archive of emails. I tried to do that, and it WIPED OUT the entire archive of "local folders", to create a brand new Local Folder lacking any contents at all. The old stash was DELETED. In the past, I've been able to use this feature of Local Folders, to use the same archive of email between several different OS installations of Thunderbird. Those glory days are gone, thanks to some genius. It seems to have lost the ability to do that. Really, all this makes me sorry I contributed to Thunderbird, this year. What a waste. I didn't select to be emailed when somebody answers, because without the sorting I won't be able to notice it happened.