Hi,
I've just seen that I in Salsa I forked it out from https://salsa.debian.org/nitsch-guest/thunderbird instead of https://salsa.debian.org/mozilla-team/thunderbird . I think that the two files that I changed are the same, but tonight I could fork from the mozilla-team/thunderbird (or prefix the variables/something else if it was preferred). Thank you, -- Carles Pina i Estany