Why? Is there something in the present version you are using that doesn’t work, are you missing a feature you desperately need, or is it just that version 141 exists and Fedora should have it?
Sometimes I don’t understand people: they always want the latest and what they call the greatest, but as soon as they have it and something is wrong with it they start complaining. Let Thunderbird do its thing, let them create a solid version and when it is ready, and what I see in @l-c-g 's post it won’t be long now.