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 cannot delete email --it says T-bird not responding

  • 1 reply
  • 2 have this problem
  • 1 view
  • Last reply by Matt

more options

From time to time, I go through periods of time when I cannot delete my email ... it says on top "Thunderbird program not responding" & then goes blank ... either I can leave T-bird or wait for program to respond which takes a couple of minutes ...

I need help to know why it is doing this.

Thank you!

From time to time, I go through periods of time when I cannot delete my email ... it says on top "Thunderbird program not responding" & then goes blank ... either I can leave T-bird or wait for program to respond which takes a couple of minutes ... I need help to know why it is doing this. Thank you!

All Replies (1)

more options

The most likely cause is an anti virus program misbehaving. That includes windows defender which is not always well behaved.

There is discussion on some of he issues here https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues