Flash works fine with Firefox on all websites I tried with these packages installed:
firefox 1.5.dfsg+1.5.0.7-1 flashplugin-nonfree 9.0.21.55.1
Flash works fine with Firefox on all websites I tried with these packages installed:
firefox 1.5.dfsg+1.5.0.7-1
flashplugin-nonfree 9.0.21.55.1