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Rated 4 out of 5 stars
Quite a great extension. The only one installed over here.
The only hiccup is the lack of a password-protected "prevent NoScript options to be changed" feature -- for guest users.
OS Guest Account
Really, if you don't want your guest to tamper with your settings, spy on your bookmarks/history and access your document, you should really setup a guest account at the operating system level...