Confuse surveillers by randomly browsing the internet.Advertisers and government agencies attempt to build a profile of you based on your browsing history. Paranoid Browsing confuses that effort by making a background tab which browses the internet at random.
PB was inspired by fictional software described in Cory Doctorow's book Little Brother: "It even throws up a bunch of 'chaff' communications that are supposed to disguise the fact that you're doing anything covert. So while you're receiving a political message one character at a time, [it] is pretending to surf the Web and fill in questionnaires and flirt in chat-rooms. Meanwhile, one in every five hundred characters you receive is your real message, a needle buried in a huge haystack."
PB currently browses the "standard American" set of web pages, but you can easily modify this to look at ponies, go carts or whatever else you want profilers to think you're interested in. Code is available on GitHub and pull requests are appreciated: https://github.com/Xodarap/Paranoid-Browsing
Note: Since Paranoid Browsing clicks on links randomly, you will get some popups. I recommend having a dedicated window for PB.
If you find PB useful, please consider donating to a top charity: http://www.effectiveanimalactivism.org/charity-evaluation/top-charities