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

Really struggling with latest update to TB

  • 1 reply
  • 1 has this problem
  • 2 views
  • Last reply by sfhowes

more options

Now it does not let me open a PDF that I have placed in the send folder. I can open the file anywhere, but not in the send box. I never send an attachment before opening what I am sending just to check - but the latest version says "unknown file error" = file is fine, directory is fine, I can email it to myself and its correct file, but you cant open in while its in send box. Why not?

Now it does not let me open a PDF that I have placed in the send folder. I can open the file anywhere, but not in the send box. I never send an attachment before opening what I am sending just to check - but the latest version says "unknown file error" = file is fine, directory is fine, I can email it to myself and its correct file, but you cant open in while its in send box. Why not?

All Replies (1)

more options

Is the pdf file attachment to the sent message displayed with a .pdf extension or a .pd_ extension? Do you have an antivirus scanning outgoing mail?