This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Thunderbird 91.2 will not open attachment from draft/write window

  • 3 fhreagra
  • 2 leis an bhfadhb seo
  • 29 views
  • Freagra is déanaí ó jl11

more options

I just updated to Thunderbird 91.2.0 (32-bit) for Windows today, but now I can't open PDF attachments while writing new email. After I attached a document, I usually open it to make sure the document is correct. However, I now receive an error message: "...pdf could not be opened, because the associated helper application does not exist. Change the association in your preferences."

I went to Tools, Preferences, General, Files & Attachments, and changed Portable Document Format (PDF) to Use Adobe Acrobat DC (default). I closed and reopened the program and rebooted the PC, but still receive the error.

I can open the PDF attachment when I save and preview the message as a draft, so Thunderbird is able to access Adobe, so the error seems to be limited to the "write" window.

I just updated to Thunderbird 91.2.0 (32-bit) for Windows today, but now I can't open PDF attachments while writing new email. After I attached a document, I usually open it to make sure the document is correct. However, I now receive an error message: ''"...pdf could not be opened, because the associated helper application does not exist. Change the association in your preferences."'' I went to Tools, Preferences, General, Files & Attachments, and changed Portable Document Format (PDF) to Use Adobe Acrobat DC (default). I closed and reopened the program and rebooted the PC, but still receive the error. I can open the PDF attachment when I save and preview the message as a draft, so Thunderbird is able to access Adobe, so the error seems to be limited to the "write" window.
Attached screenshots

All Replies (3)

more options

I also have this problem. Additionally when I send the non viewable attachment, although the Adobe Acrobat DC is opened in the copy in the "sent" folder, it appears empty.

more options

I have this problem as well. Had this happen in previous updates and had to revert back to older version. A large percentage of the emails I send have attachments so this is a no go for me.

more options

This is happening to me as well. Thunderbird 91.7.0 (32-bit).

It only happens to PDF's on outgoing / unsent drafts. Does not happen on incoming email attachments.