ਸਤੰ 24, 2020 ਤੇ Realraven (Axel Grude) (Developer) ਵੱਲੋਂ · ਪਰਮਾਲਿੰਕ

The latest verion 5.0.2 was released on December 2nd and is fully compatible with Thunderbird 78.

It takes a lot of time and quite a bit of money, so if you want to support that financially, check out the support pages. here is the issue that handles the upgrade:
https://github.com/RealRaven2000/quickFilters/issues/14
if you comment there you will be the first to be notified of a beta version!