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It works up to a certain point for a very layman. Security Issue: You can still access history and extension. You can then delete this extension. You can also delete the extension from the tool bar. Making it useless. Workability Issue: Why require an 8 character password? This is for basic security and if someone has to input 8 character passwords multiple times, it becomes more frustrating to use. Mostly, you would have profile set up on a family member's pc you use frequently and not on someone random's pc, so such stringent security is not required.