Developer reply by Firefox user beeb85
Rated 4 out of 5 stars
I agree with Scott, it's really needed the account name removal, maybe adding it only to the inbox reference, cause if you have multiple inbox we can't discover which is related to. Thank you very much at all. Andrea
UPDATE: Thanks for the reply Standard8, i appreciated very much!!!
Thunderbird is currently fixing this - it is already fixed for the Favourites folder view in the upcoming 8 (and maybe 7, I can't quite remember).
There's a bug open on fixing the other two views.
To create your own collections, you must have a Mozilla Add-ons account.