[orca-list] Orca not indicating that a Firefox text entry is writable

[Nolan Darilek <nolan thewordnerd info>]

Hey, as usual, not sure whether this is an Orca or Firefox issue. I'm 
making accessibility tweaks in the Riot Matrix web client, and notice 
that when I use e/E to navigate between text entry fields with Orca 
master, the message entry field just speaks "blank" rather than "entry". 
Is this something wrong with the web markup? If so, then I can fix that.


Here's a debug log of me flipping through text entries in the app. There 
are 3:


https://www.dropbox.com/s/jkjdw0txnftvbhr/debug.out?dl=0


As an aside, this field has a placeholder, not a label. Not sure if that 
has anything to do with why it isn't presented correctly, but I hope the 
placeholder is read when using e/E to navigate.


Thanks!