http://bugs.winehq.org/show_bug.cgi?id=15092
--- Comment #22 from Rosanne DiMesio dimesio@earthlink.net 2012-05-29 16:11:26 CDT --- Flash 11.2.202.235 works fine with Firefox 12 in Wine so long as the workaround from bug 17273 is applied. I just tested it on Hulu and YouTube--playback is perfect.
Wine's iexplore.exe doesn't work with Flash; it crashes on YouTube, and Hulu just displays a message that javascript needs to be enabled. The crash on YouTube is probably bug 17273, but Wine's IE doesn't have an about:config, so there doesn't seem to be a way to apply the workaround.
Tested in 1.5.5.