After reading comment 26 pointing to Bug 166254 , I have understood that sorting by "Received" is giving same value as sorting by "order received", and it is working well moving threads on the top of the list when a new message on the thread is added.
So even if bug is not solved, it is a workaround. The problem is that this workaround was difficult to find.
After reading comment 26 pointing to Bug 166254 , I have understood that sorting by "Received" is giving same value as sorting by "order received", and it is working well moving threads on the top of the list when a new message on the thread is added.
So even if bug is not solved, it is a workaround. The problem is that this workaround was difficult to find.