Same here, my TB is crashing everytime. If I open a link, change folder, there is no specific reason. Windows 10, recent install. No problems 2 days ago. Now I just can not use it for more than 5 minutes.

Tryed install it on a Windows 10 VM (VirtualBox), clean install, it's crashing too, even with a new Profile (empty).

I've solved it. Well, almost.

After several attempts, I resolved it with the following:

- I cleaned all traces of Thunderbird. - I installed version 143. - I created a new profile. - I imported the email settings from the copy I made of the original profile's directory contents. - I had to enter the passwords for all the accounts. - I imported the email contents, which were stored in a local folder.

It wasn't ideal, but it partially worked.

If you had crashes which resulted in seeing the crash reporter then we may have been able to help you, with the crash IDs found at help >Troubleshooting Information.

Same here, my TB is crashing everytime. If I open a link, change folder, there is no specific reason. Windows 10, recent install. No problems 2 days ago. Now I just can not use it for more than 5 minutes. Tryed install it on a Windows 10 VM (VirtualBox), clean install, it's crashing too, even with a new Profile (empty).

For reference, I fixed mine. https://bugzilla.mozilla.org/show_bug.cgi?id=1989283#c13