Thunderbird Support Forum

I would like to know what the options below, contained in the settings editor, are for and how I can adjust them so that every message sent is configured to require confirmation of receipt by default:

mail.identity.default.request_receipt_header_type mail.identity.default.request_return_receipt_on mail.incorporate.return_receipt mail.receipt.request_header_type mail.receipt.request_return_receipt_on mail.request.return_receipt mail.server.default.incorporate_return_receipt

I use the global search a lot (when it works!) I don't like the way the results are displayed so I always click 'show results as list'. Is there a way to make that the default way search results are displayed? thanks