I think that there have already been a number of comments around this problem - any plans to address it in the near future?
MPE 1.8.12 not compatible with Thunderbird 68.3.1
MPE 1.8.12 not compatible with Thunderbird 68.3.1
Cannot install addon from MPE 1.8.12 (latest version) because "This addob could not be installed because it is not compatible with Thunderbird 68.3.1"
I think that there have already been a number of comments around this problem - any plans to address it in the near future?

I think that there have already been a number of comments around this problem - any plans to address it in the near future?
booke02
According to Thunderbird:
Add-on is not compatible
A file in each add-on indicates the range of Thunderbird versions with which it is compatible. At Thunderbird Add-ons you can find and review the version compatibility information for each add-on. If your installed version of Thunderbird does not fit within the specified range, then installing the add-on or starting Thunderbird will fail or indicate the add-on is not compatible.
Add-on is not compatible
A file in each add-on indicates the range of Thunderbird versions with which it is compatible. At Thunderbird Add-ons you can find and review the version compatibility information for each add-on. If your installed version of Thunderbird does not fit within the specified range, then installing the add-on or starting Thunderbird will fail or indicate the add-on is not compatible.
booke02