Hi Giorgio.
Well, the key "noscript.stickyUI" to false on about:config, allows that Noscript become super fast, and it reduces the stress Navigation. In my particular case

.
Mmm, but this trick is not useful when the user having to apply multiple clicks on the Noscript's menu.
It disappears, it is hidden in each click. But, that is good.
Edited: last changes on Noscript 2.0.x
are really cool!!!
Thanks Giorgio.
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Activate: NoScript Options|Embeddings|Apply these restrictions to whitelisted sites as well, do it strange or freak the Noscript behavior.
Example: the flash objects (ytimg.com) on
http://www.youtube.com, activation or deactivation, does not necessarily happens by allowing or blocking ytimg.com. These actions becomes somewhat independent.
Anyway, Flash Killer is a very handy extension.
Thank you, very much.
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