Rated 5 out of 5 stars

This seemed to fix it for me (after bumping max version): open auto_zip_attachments-0.6.2-tb.xpi\chrome\AutoZipAttachments.jar\content\ with 7-zip and then AutoZipAttachments.js with notepad. Search for AddAttachment(attachment); and change it to AddUrlAttachment(attachment); It shows up 3 times. No guarantees, but I have tested it a little.