Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊，或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

Learn More

此討論串已被封存。 如果您有需要幫助，請新增一個新問題

Association for PDF attachments

  • 1 回覆
  • 1 有這個問題
  • 33 次檢視
  • 最近回覆由 Toad-Hall

russell19
russell19
more options

The error message below come up when trying to open a PDF attachment. This only happens when trying to open the attachment before sending a message. Messages that have been sent or received we are able to open the PDF attachment. I have deleted the Preferences in the settings for PDF type files many times and still unable to open a attachment. It's important to be able to open a attachment before a mail is sent to confirm the document is correct Please assist.

Error Message

C:\Users\Russell\AppData\Local\Temp\nsmail.pdf could not be opened, because the associated helper application does not exist. Change the association in your preferences.

The error message below come up when trying to open a PDF attachment. This only happens when trying to open the attachment before sending a message. Messages that have been sent or received we are able to open the PDF attachment. I have deleted the Preferences in the settings for PDF type files many times and still unable to open a attachment. It's important to be able to open a attachment before a mail is sent to confirm the document is correct Please assist. Error Message C:\Users\Russell\AppData\Local\Temp\nsmail.pdf could not be opened, because the associated helper application does not exist. Change the association in your preferences.

所有回覆 (1)

Toad-Hall
Toad-Hall
  • Top 25 Contributor
more options

TRy info at this bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=1698140 from comment 8 onwards.

Also good info in this bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1729922 from comment 17 onwards


Basically - something werid going on with the Content type: HTML document Thunderbird seems to think pdf are HTML - SEt the Content Type for PDF to eg: Adobe But set Content type: HTML document Action to 'Always Ask' or if you rarely open any html documents then set as Adobe.