Targeted Advertising Cookie Opt-Out (TACO) is a Firefox plugin that jumped the shark. In 3.0 they introduced new features, and a bunch of fancy gui stuff to match it. This removed the simple, painless beauty that was TACO 2.0. Beef Taco is a fork of TACO 2.0, before the new features and UI, and kept up to date with the most recent Firefox versions. This is not a replacement for all the goodies that are in TACO 3.0+, and there are some useful tools, it's just a path back to a simpler time.