Rated 4 out of 5 stars

I also have this issue with 1.4.4.
downgrading to 1.4.3 seemed to lose my options.
Luckily going back to 1.4.4 restored them.

I have found a workaround to using 1.4.4
if you get a greyed out send button
select an alternative identity
the send button will become active
going back to default identity will not cause greying

Shaun

This review is for a previous version of the add-on (1.4.4).