For several months now, the subject message—which, btw, in my experience is always wrong, because I ignore it and the webpage performs correctly anyway—has been appearing frequently near the top of my browser.
Why, especially with the advent of HTML5, is this message appearing now? I almost never saw it until several months ago, and now I seem to run into it daily.
Support for Adobe Flash will no longer be advertised in navigator.plugins and navigator.mimetypes if the user has not substantially interacted with a site, though users can re-enable Flash experiences on a per-site basis.
It is not always obvious to the user what Flash is used for on a site.
JoWa,
Sorry to only now be replying to your last message, which I’ve just now seen for the first time. I appreciate your suggestion. I will try it the next time I encounter this “Adobe flash player must be installed to view . . .” message.