Comment 5 for bug 347080

I have the same problem. Jaunty. Tried uninstalling firefox and adobe-flashplugin, flashplugin-nonfree and flashplugin-installer.
Did not help. Solution from Fransisco: "sudo apt-get remove --purge flashplugin-nonfree
sudo apt-get install flashplugin-nonfree"
did not solve it either. Another user had same problem.

Strangerely: dilbert.com does work: I can view all the comics and browse back. Megavideo also worked.
Tudou gave a message: install flash, and a link to click. It tries to download and install an older version of flashplayer from Adobe.

No idea why.

(If I copy the libflashplayer into the firefox-3.0.10/plugins directory, the screen is just black where normally the player appears when I use Tudou, for example.)