I think this would be a really useful feature, especially for people moving from Outlook to Thunderbird. Having native support for both MSG and PST files would save a lot of time and avoid extra conversion steps.Until something like this is added, on...
I was stuck in the same situation when I had to handle a large batch of MSG files from Outlook, most of them filled with PDFs, invoices and project docs. Opening each file and saving attachments manually works, but once the count goes into hundreds, ...