Helpful for people concerned about privacy

Fantastico.

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I can't complain about the add-on itself, because I use a bunch of others extensions similar to Container (all aimed at privacy). Also, it's quite simple to understand what it does and everything is explained when you hit the add-on button next to the address bar.
If you're concerned about your privacy against Facebook's practices, it's a good choice, because you just have to install it and surf the web hehe.

works grate

非常好的浏览器

Excellent addon! It's a must-have.
One question: is this extension useful for someone who doesn't use facebook? I recently deleted my facebook account, and I wonder if I still need this. Do facebook trackers also collect data from unsigned users?