Researching holiday gifts or good office pranks? When you have to secure your browser from prying eyes use Vaux's Lock System (VLS). Setting a pin in the options page that only you remember can grant access to select windows. Note: if no pin is detected the options page will open up automatically upon choosing a window to lock. All saved windows, including incognito, can be locked. Turn on incognito mode found here: http://faq.vauxapp.com/articles/1220-turn-on-incognito-mode.