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Is there any technology in Web that can steal passwords from Firefox (if they aren't protected with "master password")? Any script or anything else? Like I surf some page and it downloads files of Firefox with passwords. GNU/Linux of course.
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To be the best of my knowledge, stealing passwords just by visiting a website isn't very feasible. There are however tools to decrypt the password database used by Firefox - even with a master password. So if someone exploited a bug and gained access to your system they could copy off the database and open that and get your passwords that way.
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