OK, I already have the plugins for Firefox like Adblock Edge, Cookie Monster, Disconnect, DuckDuckGo Plus, Ghostery & HTTPS-Everywhere but this one may seem to look like a prototype extra. So, am I getting unnecessary add-ons or what for the sake of higher privacy level? What over-protects you is the NoScript and the other one that prevents whatever request. With those add-ons enabled, you won't be able to go to the popular websites you visit to everyday such as the video sharing sites, social networking sites, etc.
At this level, Privacy Badger is nowhere as good as the add-ons I'm already using for Firefox not because it is at the alpha phase.