Re: Until *ALL* websites can do without flash
" no other browser can do Flash on Linux without incompatibilities and open security holes."
I'm not sure about the incompatibilities but IFAIK Adobe are OS agnostic in their supply of open security holes. However the the Mozilla browser family makes it possible to run Flash on a case-by-case basis so if you want it for some site you're reasonably confident about you can just turn it on as you need it. This is on Linux, of course, I'm not familiar with the situation on Windows.
But for iPlayer I prefer to run get_iplayer which downloads and saves to mp4 which I can the punt over to a box connected to the big screen.