You can download flash movies without a plugin in firefox 1.0.7, just go to Tools>Page Info>Media tab and save the enbeded SWF that shows up right there. For flash that opens up in a new window just right click in the window (not on the flash itself) and veiw source, 80% of the time the direct link is simple to find so you enter that into the window and if brings it right up for you to save directly.
Thanks for the info on making the script I just tried it with a couple of flashes. Maddness Combat didn't play at all and the Hong Kong Fooey Anime flash started but resets after the title, I may try some of the Xiao Xiao movies tomarrow assuming someone else dosent try them first.