Situation is worse. I have been using the BIDI add on until Mozilla activated a policy of always in validating add ons not released for the latest Thunderbird release. And since they release every 2-3 days the debeloper could not cope with this anym...
Thunderbird 143.0 and up is no longer supporting BiDi Mail UI https://github.com/eyalroz/bidimailui/issues/150 do we need an intrinsic support from Thuderbird !
