I haven't had problems running Flash sites on Firefox w/ Nexus 7 until A&E TV, where it won't even load the site properly. It does work great on my RAZR with an earlier version of the Dolphin browser that still runs flash. My phone is still running 2.3.6, because I liked that version better and never install Android updates. But I've been able to run desktop versions of You Tube & play videos which the app says aren't available for mobile, and all flash videos play in desktop version of IMDB. Plus there are some architecture and photography sites that have no mobile version and require flash to view front page that work. But if I try to play episode on A&E it says it's playing over still of episode, but doesn't even display error message. Just opens blank, black box.