There are some extensions that generate a lot of extra traffic. They were developed around the time that Phorm[1] was being introduced in the UK.

I agree with you and TemPorAL (apologies for incorrect capitalisation!) that these are probably a waste of time for the user - they don't work.

NSA and GCHQ are very good at math - I'm constantly surprised that people don't appear to get this. Maybe it's because secret government agencies don't publish much?

Just for fun here's one extension: (http://trackmenot.org/) (https://cs.nyu.edu/trackmenot/)

People can probably come up with ways to improve it. But still, these are probably pointless measures.