That's certainly true. While hiding complexity is the largest benefit, and some might say is the aim, of technology; it also opens the door to this type of abus

That's certainly true. While hiding complexity is the largest benefit, and some might say is the aim, of technology; it also opens the door to this type of abuse. Technology is a tool, and good tools do not hurt their users. However, the more complex the tool, the harder it is to verify that, in all cases, the user is not hurt (what does it mean to hurt someone's privacy?). This is one of the largest challenges we're facing now -- making sure our tools work for us and only us. In this case, open source is only the first step; policy must also adapt and Mozilla needs to take a good hard look at what permitted this to happen.