I saw DIsconnect - Private Browsing being used last night on 60 Minutes and how people need to use something like this when online, I already knew the need for it but many people don't. I decided to try it out and have only used it very briefly. Basically it does what Ghostery and similar do by blocking trackers, etc. It has a cool animation of the trackers, etc., on a given page in Chrome-based browsers (but not in Firefox yet).
The GUI of it in Firefox needs some work, such as the very small text in some areas, etc., and lack of the animation of trackers which is supposedly coming soon, using the Chrome-based version first must have spoiled me since it looks better.
Gave it a whirl about 12 months ago and although it, in itself, was good, I couldn't figure out why I needed it when I had AdBlock+, Ghostery and the HOSTS file.
Found NoScript also very good but just a little too zealous, which was fine as that is it's job after all. But it was too intrusive for me for continual usage - I keep coming back to it every now and then.