Tracker Blocking Laboratory

The EFF Tracker Blocking Laboratory is an experimental fork of AdBlock Plus for OHM 2013 participants and other interested parties to experiment with. It autogenerates blocklists based on apparent respect for Do Not Track requests, as measured by the continued presence of third party cookies after a DNT: 1 header has been sent (eventually, this should apply only to high-entropy cookies and should also test for likely fingerprinting and supercookieing). CDNs and other sites that are not actually third party trackers may be "whitelisted" so that they are only cookie-blocked rather than completely blocked. Sites can also self-whitelist by agreeing to a privacy policy that the user or their client has specified as satisfactory.

The TBL is initially available for Chrome and installable from the Chrome Web Store. The source code is available from github.

Related Issues

Stay in Touch

NSA Spying

EFF is leading the fight against the NSA's illegal mass surveillance program. Learn more about what the program is, how it works, and what you can do.

Follow EFF

This week's @PlanetMoney podcast explores the shocking levels of secrecy around trade deals like TPP https://eff.org/r.aas6

Jun 30 @ 4:49pm

Secret FISA Court gives the NSA a temporary extension on spying on our phone records: https://eff.org/r.yqa3

Jun 30 @ 4:37pm

Here’s how Computerworld covered EFF’s birth 25 years ago https://eff.org/r.a34f

Jun 30 @ 1:28pm
JavaScript license information