多くのウェブサイトがJavaScriptが無効だと機能しなくなるので、NoScriptはJavaScriptを有効にするように設定されています。
Most users would give up on Tor entirely if we disabled JavaScript by default because it would cause so many problems for them.
Ultimately, we want to make Tor Browser as secure as possible while also making it usable for the majority of people, so for now, that means leaving JavaScript enabled by default.
デフォルトで、すべてのHTTPサイトでJavaScriptを無効にしたい場合は、Tor Browserの「セキュリティレベル」を変更することをおすすめします。
This can be done by navigating the Security icon (the small gray shield at the top-right of the screen), then clicking on "Change...".
The "Standard" level allows JavaScript, the "Safer" level blocks JavaScript on HTTP sites and the "Safest" level blocks JavaScript altogether.