I hope you didn't intend it, but what on earth have you done in the most recent Thunderbird "update"? Almost every day I delete an email from my inbox by right-clicking and selecting delete from the drop-down. Maybe the chain is complete, quite often it's something suspicious that has slipped by the spam filters and I simply do not want to open it, sometimes it's a delivery company telling me that my parcel has arrived, which I already know. It is always a simple operation and I carry on with my activities. Now however, when I do this, the inbox resets to the very beginning, to the first email that I did not delete, back in 2010 when I first became a user, and I have to scroll through 13 years to get back to today.

Please fix it, quickly. Derek Peters