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Thunderbird 'Freezes' When Initially Launched (win10)

  • 3 replies
  • 1 has this problem
  • 1 view
  • Last reply by Wayne Mery

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When I first start Thunderbird, it will 'freeze' almost immediately. After several minutes, the application resumes normal behavior.

I opened the Error Console, shut down TB and restarted it. The application 'froze' again and when it returned to 'normal' behavior. The Error Console displayed the following error message:

Assert failed: TypeError: getMinimonth(...).refreshDisplay is not a function 2: [chrome://lightning/content/messenger-overlay-sidebar.js:569] refreshUIBits 3: [chrome://calendar/content/calendar-views.js:313] scheduleMidnightUpdate/udCallback.notify

 calUtils.js:1021

ASSERT chrome://calendar/content/calUtils.js:1021:9 refreshUIBits chrome://lightning/content/messenger-overlay-sidebar.js:569:9 scheduleMidnightUpdate/udCallback.notify chrome://calendar/content/calendar-views.js:313:13


While I am not a software developer, I do recognize that there is a problem with a function on the calendar (a feature which I do not use at all).

Might someone know how to resolve this and educate me, please?

When I first start Thunderbird, it will 'freeze' almost immediately. After several minutes, the application resumes normal behavior. I opened the Error Console, shut down TB and restarted it. The application 'froze' again and when it returned to 'normal' behavior. The Error Console displayed the following error message: Assert failed: TypeError: getMinimonth(...).refreshDisplay is not a function 2: [chrome://lightning/content/messenger-overlay-sidebar.js:569] refreshUIBits 3: [chrome://calendar/content/calendar-views.js:313] scheduleMidnightUpdate/udCallback.notify calUtils.js:1021 ASSERT chrome://calendar/content/calUtils.js:1021:9 refreshUIBits chrome://lightning/content/messenger-overlay-sidebar.js:569:9 scheduleMidnightUpdate/udCallback.notify chrome://calendar/content/calendar-views.js:313:13 While I am not a software developer, I do recognize that there is a problem with a function on the calendar (a feature which I do not use at all). Might someone know how to resolve this and educate me, please?

Modified by Wayne Mery

All Replies (3)

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> While I am not a software developer, I do recognize that there is a problem with a function on the calendar

Not necessarily. In fact, more often than not the function identified is not the one at fault

> (a feature which I do not use at all).

In that case, please disable calendar in Addons. Does your situation improve?

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Please post an update to the topic after you test

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VegasJoe seems to be gone. Locking topic