Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Windows 10 - Thunderbird Hangs consistently

  • 1 reply
  • 2 have this problem
  • 1 view
  • Last reply by christ1

delpi767
delpi767
more options

With Windows 10, Thunderbird (38.4.0) and all previous versions hangs at random times. I have not been able to find one specific thing that causes it to hang. It hangs with a not responding message and recovers after one to two minutes.

It is truly to the point that I have had to switch to Windows Live Mail because of unreliability.

In Windows safe mode TB seems to work okay but I can't leave the machine in that mode too long because it disables too many things.

In TB safe mode the problem, as described above, is still there.

I can confirm that the problem occurs with all anti-virus software disabled.

I will be happy to work with you f to find a solution.

With Windows 10, Thunderbird (38.4.0) and all previous versions hangs at random times. I have not been able to find one specific thing that causes it to hang. It hangs with a not responding message and recovers after one to two minutes. It is truly to the point that I have had to switch to Windows Live Mail because of unreliability. In Windows safe mode TB seems to work okay but I can't leave the machine in that mode too long because it disables too many things. In TB safe mode the problem, as described above, is still there. I can confirm that the problem occurs with all anti-virus software disabled. I will be happy to work with you f to find a solution.

All Replies (1)

christ1
christ1
  • Top 25 Contributor
more options
In Windows safe mode TB seems to work

Windows safe mode disables anti-virus software, which is most likely the culprit.

Create an exception in your anti-virus software for the Thunderbird profile folder, so that the anti-virus real-time scanner will not scan it.

Don't let your anti-virus software scan incoming and outgoing messages.

Don't let your anti-virus software scan attachments.

Don't let your anti-virus software intercept your secure connection to the server.

Remove any add-ons your anti-virus software may have installed in Thunderbird.