Please describe the problem:
When in an address field, word echo is not functioning in two related cases:

1. Autocompletion is disabled.
2. if the name/address being typed does not exist in the address book and autocompletion is enabled. 

In both cases, the only way to determine the contents of the address field is to use either keypad-8 or keypad-Enter. In the second case, the output is misleading because the only information spoken is the last matching entry in the address book, spoken when it matches the information found in the address book. There is no indication that the address being typed is different from that entry in the address book.

Steps to reproduce:
0. Disable key echo for alphanumeric keys and enable word echo in Orca.
1. case 1: Start Thunderbird.
2. Ensure that autocompletion is disabled. 
3. Open a new message for writing (control-n).
4. type in a name and address pair or an address.
5. Second case: Open Thunderbird.
6. Ensure that autocompletion is enabled. 
7. open a new message for writing (control-n).
8. Type a name/address or address whose first few letters coincide with an address book entry but that is not contained within the address book.
3. 


Actual results:
Case 1: No text is spoken while typing the address.
Case 2: Autocompletion provides feedback of existing address in the address book, but once the address does not match an address book entry, Orca is silent.

Expected results:
After typing each word (delimited by white space or punctuation), Orca should speak the word.

Does this happen every time?
yes

Other information:
I will generate a debug log and attach it to this bug report.