Edit: It shows the "Installation aborted because the add-on appears to be corrupt." error if you've changed the extensions.allowPrivateBrowsingByDefault toggle in about:config. Now it's working fine.

I am raising my rating because there is a disable button & I don't have to uninstall to shut it off. [So I can still play Facebook games]
Couldn't find one before.

yaxsidi

Stops Facebook from tracking my activity. It's utterly creepy how much they can figure out about you. Sometimes I have to turn it off to access some Facebook plugins, but since that's what it's SUPPOSED to do, it gets a full 5 stars. Those minor inconveniences are worth it!

Must have add-on!!!

cool idea