trying to be more helpful, I went and checked mozilla's plugin checker at :
http://www.mozilla.com/en-US/plugincheck/
If I browse to it in firefox alone, I get this:
curious enough, when I browse to it using getFLV (firefox as the default), I get this:
The first one is not my complete list (I did not see the benefit in capturing the superfluous plugins below the screenshot), but the second one IS the complete list (nothing below what you see in the screenshot)
Hope this helps somehow.