From what I now all survey pages advise to have java and flash installed and updated.
Is this still true today? I think they now about this updates.
From yesterday I use updated Firefox and I see pop up when starting YourSurveys survey about updating flash. So they still use it and I see ad on first

But do we still need it?
Because I will be happy if flash is gone. This add on uses 70% CPU when used. Same with Java I will be happy not to have it because is like doors for hackers when used as add on in browsers.