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

I can't open pdf attachments in Windows 8 TWINUI since latest Thunderbird update

  • 1 reply
  • 1 has this problem
  • 2 views
  • Paskiausią atsakymą parašė Matt

more options

Since the latest update, when I try to open a pdf attachment using my default program (TWINUI - which I hate, but that's another story), most of the time nothing happens, it just doesn't open anything. I tried re-starting TB and even restarting my computer, and it works for one attachment, but then stops again. Very random, very frustrating.

Since the latest update, when I try to open a pdf attachment using my default program (TWINUI - which I hate, but that's another story), most of the time nothing happens, it just doesn't open anything. I tried re-starting TB and even restarting my computer, and it works for one attachment, but then stops again. Very random, very frustrating.

All Replies (1)

more options

I am guessing the helper application TWINUI is hanging in memory and not terminating so the next instance just does not work as it is still there. quite possibly related to anti virus scanning of the underlying PDF file. (I don't mean windows defender, I assume Microsoft can write a program that works with the other windows default programs.)