iCloser

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A Google Chrome Extension to automatically close Incognito windows after a period of inactivity.In case you use Incognito windows at work (or home) and forget to close them, this extension will keep your co-workers from happening upon your private windows by automatically closing them for you after a period of inactivity. Choose any number of minutes from 1 to 5 hours and then rest assured that your window will quietly be closed for you if you forget.

NOTE:
You must enable the extension to work in Incognito mode in order for this to do the job it is intended to do.