I know of expression-search(https://github.com/wangvisual/expression-search https://github.com/wangvisual/expression-search) but it is not supported in recent v

I know of expression-search(https://github.com/wangvisual/expression-search https://github.com/wangvisual/expression-search) but it is not supported in recent versions of Thunderbird. I'd be interested as well as I've been longing for a proper keyboard UI. For quickly switching folders there is Nostalgy(https://github.com/nostalgy/nostalgy https://github.com/nostalgy/nostalgy).