Anṣuf ar Thunderbird n izegrar.
Rnu timahilin neɣ iɣunab nniḍen akken ad terreḍ Thunderbird d ayla-k.
MdelAcegger n Silvermel sɣuṛ Gordon Dry
Yettwasezmel 3 ɣef 5 n yetran
But still works then.
Edit:
nope, it's possible to enable it now, but in the compose message window it's obvious that it's not compatible any more:
https://i.imgur.com/9u19tn4.jpg
Please update.
Ma ulac aɣilif ini-d acuɣeṛ:
Akken ad ternuḍ tigrummiwin inek, yessefk ad yili ɣur-k umiḍan n izegrar Mozilla.