http://omg.yahoo.com/video/gisele-bundchen-kirsten-dunst-emma-115424558.html doesn't play along with CtP, a "loading" spinner is shown forever. Another page with a Flash video that doesn't play along with CtP is http://gawker.com/5750211/the-full-mcbain-movie-hidden-throughout-simpsons-epsiodes page shows "Flash required to play video" if user is not fast enough to interact with the door hanger. Posting here per https://bugzilla.mozilla.org/show_bug.cgi?id=738698#c50

https://play.spotify.com/track/2Cicw58fYGGfvSa181KqfU?utm_source=open.spotify.com&utm_medium=open doesn't play along with CtP, a message stating "To enjoy Spotify, please install Adobe Flash. It's free." even though Adobe Flash is installed.

(In reply to alex_mayorga from comment #2) > https://play.spotify.com/track/2Cicw58fYGGfvSa181KqfU?utm_source=open. > spotify.com&utm_medium=open doesn't play along with CtP, a message stating > "To enjoy Spotify, please install Adobe Flash. It's free." even though Adobe > Flash is installed. It works fine after allowing Flash on the site and doesn't even require a page reload - so it's just their message that's unhelpful.

Not using this bug any more.