@peacememories
From reading the first section of the article, I believe that it is meant for people using screen readers, if you use a screen reader I doubt that you take the pronunciation at face value as well. And now instead of the Screen reader reading "bla bla IMAGE bla bla" it will offer an alt text.
But yeah obviously a way to differentiate between existing and locally generated ALT texts would be good, with the option to prompt for a new local alt text etc.
@mozilla

@peacememories @mozilla iOS and Android have been using similar models for quite some time and the descriptions have been proven useful. Firefox isn't reinventing the wheel here, they are matching what the industry has already been doing for years. Blind and visually impaired people rely on AI generated alt text all the time already. Of course human provided alt text is preferred, but in the grand scheme of the internet it is still really rare, despite decades of education regarding the topic :/

@peacememories @mozilla no they dont. They just want ai everywhere.