[MoMan]

Does this disable all notifications?
I don't want my users to be able to disable all notifications.

No, just this one.

is it possible to add disable mail in subscription thread ? so member can choice which way they want to notify?

Not currently a feature of this plugin. I don't think very many users would need that.

Great mod, thanks a lot.
Please let me know why that 'New Subscribed Threads' phrase doesn't appear here ?

That's weird- check in your phrase manager if the phrase new_subscribed_threads is there, and if not, add it as a global phrase.

Also try changing $vbphrase[new_subscribed_threads] to $vbphrase['new_subscribed_threads'] in the plugin itself, as the former is technically incorrect (I've now fixed this in the xml file).