hmmm…problem is fix, flash uploader is working now.
1.I disable all my Fx plugin. (say “need restart Fx”)
2.and my Fx say “The Ver3.0.11 has been able to download” and auto update itself.
3.Fx restart, Upgrade to 3.0.11
4.enable all Fx plugin. (say “need restart Fx”)
5.Fx restart, problem solved.
So this is an (old-Ver.)Fx problem or some Fx plugin Incompatible…? I don’t know.
Anyway Thank you, mrgtb