Gecko embedding is being worked on as a community project: https://wiki.mozilla....

Gecko embedding is being worked on as a community project:

I agree that Mozilla should start supporting it officially. Especially after they decided to kill mobile XUL Fennec off: https://bugzilla.mozilla.org/show_bug.cgi?id=831236

With official Mozilla being too engrossed in Android, this remains the only alternative for normal mobile Linux to use Gecko.