On Thu, 2023-02-09 at 21:05 +1100, Stephen Morris wrote: > I've checked two mails with attachments, one mail has the pdf attachment > as content type application/binary-octet and the other has the content > type of application/pdf on the attachment and the issue occurs with both > of them. On that note, it's not a good idea to try and get your program to open PDFs sent as application/binary-octet, because it'll try to do the same thing with any other non-PDF file. Fun and chaos will ensue. You can try setting it to pass the file to xdg-open, and then xdg-open will try opening the file in the right application for what the file is. See if that changes anything. If you allow Thunderbird to directly open the PDF in Okular, can you view properties of the PDF file in Okular, and see where the temporary file is being loaded from? A wild thought: Is it a filename with blank spaces in it? -- NB: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the list. The following system info data is generated fresh for each post: uname -rsvp Linux 6.1.7-100.fc36.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Jan 18 18:37:43 UTC 2023 x86_64 _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue