Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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 only open Thunderbird in Safe Mode or it freezes and flashes?

  • 4 replies
  • 2 have this problem
  • 9 views
  • Last reply by jannlinn

more options

After Windows 10 performed critical updates, my Thunderbird program no longer launches without freezing and crashing. I can start it in safe mode and it seems to perform as it should. I have removed all add ons and extension and even recommended hidden files that was causing it to open multiple windows, as many as 30 or 40 at a launch. Do not know what to try now, any suggestions? Thanks in advance for any helpful advice.

After Windows 10 performed critical updates, my Thunderbird program no longer launches without freezing and crashing. I can start it in safe mode and it seems to perform as it should. I have removed all add ons and extension and even recommended hidden files that was causing it to open multiple windows, as many as 30 or 40 at a launch. Do not know what to try now, any suggestions? Thanks in advance for any helpful advice.

All Replies (4)

more options

Let's start with, what addons did you / do you have installed?

more options

The only addon that was listed was Lightning and I first disabled and then completely removed.

more options

Tried all suggestions and still if I try to launch it normally, it either freezes up and does not open or opens with multiples windows of between 27 to as many as 40? I think I will have to continue to open in safe mode or do not have a usable email app.

more options

I will try to go to profile manager and create a new account, not sure about my computer abilities to do this? Does it hurt to continue running Thunderbird in Safe Mode?