For about the 3rd time in my history of using Thunderbird I have just deleted pretty much my entire in box by fat fingering the delete key when cleaning out junk emails using shift/delete. If you fat finger the End key in the process all emails are selected to the end of the in box and then deleted with no prompt. This is an open man hole cover that needs to be closed. What program allows huge amounts of critical information to be deleted with no are you sure prompt? Some kind of prompt should appear if more than x number of emails are to be deleted, it would be nice if this was a configuration setting, it should default to 1, if more than 1 email is to be deleted the user is prompted, the user can set this to something higher if they want. Thunderbird is updated constantly which is great, please get this into an update soon!