Firefox flash plugin prompt to install every time

issue on my W7 32 and 64 bit with firefox 3.6.16. as well as 4

pluginreg.dat has plugin listed after install but it's gone after re-boot

work around:

copy the file NPSWF32.dll

from your C:\windows\system32\macromed\flash

to: C:\program files\mozilla firefox\plugins

now open firefox and flash will work also it's now listed in pluginreg.dat in your profile

cant wait for an update :)

Cheers,
schnopi