61061 - Possible to detect talkback from javascript

Status: VERIFIED WONTFIX

(Core Graveyard :: Talkback Client, enhancement, P3)

Description

[Henrik Gemal]

It could be nice if it was possible to detect if the user has installed the 
talkback module from JavaScript.
Something like:
if (navigator.talkback) alert("Talkback is installed!");

What if talkback has been installed using .xpi files? Can it be done already 
then?

Comment 1

[Paul McGarry]

Why would this be nice? Who would it be nice for? Talkback doesn't affect the
way a page is recieved, rendered or any other capabilities of the browser. I
can't see any legitimate reason for a page wanting to know this. At best this
would seem a waste of developer time that brings up privacy issues. At worst it
could be an avenue to security exploits?

Comment 2

[chris hofmann]

I'd think I'd agree.  If a user needs to know if talkback is installed
and turned on they can run the talkback.exe or talkback executable
and check "agent on/off" status.

I suspect we could get this hooked up in the "tasks | tools" menu
like it is in netscape 4.5x+ browsers.
 

Comment 3

[Shiva Thirumazhusai]

I have created a bug(internal) to add menuitem for talkback tools.

Comment 4

[Daniel Veditz [:dveditz]]

So let's be honest and WONTFIX this. Another bug covers the user being able to
query his own setup; letting websites know can only be useful if they're
*wanting* to crash you.

Comment 5

[Henrik Gemal]

I'm verifying this since a othre bug already exist on bugscape to add menuitem 
for talkback tools