Lightning 4.0.0.1 is not compatible with Firefox 38.05 HELP! no timetable. How do I return calendar?

Updated Firefox, now off lightning. Need of Lightening back as important events are trusted to it. Thunderbird now at the 38.0.1

Extensions
Lightning, 4.0.0.1, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}

Lightning is enabled and should work just fine.
Do you still have the error messages?
Can you explain the problem more in detail?
What are you doing?
What is going on?
What do you get?

Tags: Thunderbird

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