Moreover, I think the OP was asking how to only
have express install prompt for upgrades for FF users, correct?
To do that, you need to do a little more with the
API....
There's a swfobject.ua object (assuming you are
using v2.2) that exposes properties like which browser. Check the API
documentation for details.
So, basically, using that, you can construct an
if-statement about only doing things in FF.
Then, you can use the API function
hasFlashPlayerVersion() and if it isn't at least 10.0.32 (and the FF check
passed), you can use the showExpressInstall() API function.
The documentation is your friend:
--Kyle