They lose effectiveness as more people use a browser session because they are targeted to the concept that one browser represents an interest profile of one person.

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"About half of the participants could not judge the security state of a browser session correctly, " the researchers wrote.

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You can even open up an Internet Explorer session inside a Chrome browser tab, and then connect to the applications that require Java and run them on the Chromebook.

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Before each session, the system cleared his computer of all browser data, including cookies.

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