about using narrate in firefox 49 and later:


hello every one.
in the releasenote for firefox 49 i read that narrate became activated
by default.
how is it usable?
does it only support sapi5?
does it support espeak or if only supports sapi5 voices installed on
windows by default.
also, is it usable for screen reader users and whats the use case when
we have nvda?
any help will be appreciated, God bless you all!

By God,
were I given all the seven heavens
with all they contain
in order that
I may disobey God
by depriving an ant
from the husk of a grain of barley,
I would not do it.
imam ali