Yup, first thing I did. But the fact that it was on by default gave me pause. I'm not naive, they need to make money, but it wasn't even a clearly communicated and justified option. This smells of "our greatest asset is the number of eyeballs we can attract" which is typical of products that are free in order to grow a user base which they then sell to the highest bidder. The Mozilla foundation does good work, but it's ultimately not about intentions or even organization policies - these can yield to pressures once the course is set in a particular direction. I'm going to fully switch to Firefox once that adblock Chrome policy comes into effect, but I wish there were more than a handful of options for me to choose.