This is no longer possible in modern browsers due to security restrictions.
Official(-ish) Sources:
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In Firefox 3, dom.disable_window_open_feature.location now defaults to true, forcing the presence of the Location Bar much like in IE7. See bug 337344 for more information.
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In Internet Explorer 6, location specifies whether to display the Address Bar.
(Implying the behaviour ends with IE6)
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Those toolbar hiding parameters are ignored in Chrome.
You will also notice that modern browsers are moving towards not hiding it as security / anti phishing measures.
Also see https://bugzilla.mozilla.org/show_bug.cgi?id=337344