As a result of its blocking, you'll see some ads blocked --- not all, though. And Abine says that unlike most anti-tracking tools, DNT+ allows users continue to use social-sharing buttons even though the software blocks social tracking.
Once installed, DNT+ allows users to see who is tracking them on each website they visit. It currently blocks 580 different tracking technologies and more than 200 tracking companies. Users can set tracking to be blocked or allowed on a per-site basis.
You can download the app from Abine's website. It uses C|Net's Download.com site, and will redirect to an appropriate version for your browser. Indeed, that's a slight drawback: although it works on four browsers, you have to install an app / plug-in / extension for each one.
The tool will automatically update to block new tracking technologies and companies.