rtfa-troll writes "Beef Taco is a Firefox extension that allows a mass opt-out from tracking and targeted advertising by many ad networks. The Register reports that the original system, TACO, has become proprietary, and has added new 'features' best described as bloatware. I guess this should serve as a warning for users to always prefer software under a copyleft license where possible. If Google had chosen a license with better protection, such as the GPL, when it released its own opt-out tool, this problem would have been much less likely. This also shows why forks are so important when software development begins to get messy."