Like many privacy advocates, the Electronic Frontier Foundation isn't a big fan of advertisers and sites following you around the web. So, it's doing something about this nosy behavior -- it's launching a browser add-on, Privacy Badger, that lets Chrome and Firefox users limit site tracking. The tool automatically stops sites' attempts to shadow your surfing activity and lets you selectively grant permission when you're not worried. To get on the Badger's good side, a web host has to honor Do Not Track requests -- a not-so-subtle dig at Facebook, Google, Yahoo and others that so far insist on tracking visitors.If you like the idea, the Foundation could use your help. Privacy Badger currently exists only as a rough alpha release, and the EFF would like some real-world testing before it recommends the software to the public at large. Should you have no problems with living dangerously, though, you can try the anti-snooping software today.