Add-on, for me, largely replaces the old Ghostery add-on (which no longer blocks cookies or apparently much at all really). The traffic light system is insanely simple to understand, and makes it quick and easy to fine-tune your experience. It would be great if you could combine a filterlist with it so you have instant, out of the box protection without having to install an ad-blocker. It would also be great if it provided some indicator on why it considers a url to be tracking you- a hit count for each attempted access, for example, or even just make the title text for each site a darker font (and vice versa).

Also, I know they have done it for a while now, but I respect EFF for finally producing their Add-Ons on the official Firefox repository... Although they probably didn't have a choice with it impossible to install unsigned add ons now on anything but the Developer version of the browser. I feel this is what EFF should have done all along, to counter clones appearing instead, along with maybe a warning about Firefox's policies. Although I'm in support of the reasons EFF declined to upload add-ons like https Everywhere for such a long time, for me the ultimate aim of getting the protection offered to as many users as possible probably should have been the more important focus?