ThunderBird add-on prevents incorrect mimetypes for doc, odf, and rtf attachments.
However, the No Wrong Mimetype for ThunderBird extension has completely eliminated this problem. It ensures that the correct mimetype entries are used for all attachments, thus allowing seamless inline viewing of all types of attachments.
For those who have already encountered this issue, the fix is simple - just delete the mimeTypes.rdf file in your profile's directory. By doing so, you can ensure that you never face this issue again and can enjoy uninterrupted access to all your attachments. Overall, I highly recommend the No Wrong Mimetype for ThunderBird extension to anyone who wants to improve their ThunderBird experience.
Version 0.1: N/A