![Mozilla's Lightbeam Firefox tool shows who's tracking your online movements | Firefox | The Guardian Mozilla's Lightbeam Firefox tool shows who's tracking your online movements | Firefox | The Guardian](https://i.guim.co.uk/img/static/sys-images/Guardian/Pix/pictures/2013/10/28/1382957132773/f878e0b8-bc60-4db5-b772-9824a975c3c1-1020x612.jpeg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdGctYWdlLTIwMTMucG5n&enable=upscale&s=580c0a1b7184927e51330b050c9d2f28)
Mozilla's Lightbeam Firefox tool shows who's tracking your online movements | Firefox | The Guardian
![R. Hill on Twitter: "Interesting project: https://t.co/XUZ71RGDES It measures the use of 3rd parties across a collection of 25 high traffic sites using Firefox Lightbeam extension. Left pic = no blocking Right R. Hill on Twitter: "Interesting project: https://t.co/XUZ71RGDES It measures the use of 3rd parties across a collection of 25 high traffic sites using Firefox Lightbeam extension. Left pic = no blocking Right](https://pbs.twimg.com/media/D6PjCmpWwAMxskD.jpg)
R. Hill on Twitter: "Interesting project: https://t.co/XUZ71RGDES It measures the use of 3rd parties across a collection of 25 high traffic sites using Firefox Lightbeam extension. Left pic = no blocking Right
![Mozilla's Lightbeam: A Leading Indicator on How U.S. Internet Giants Have Become Privacy Advocates! | Big Data Big Analytics Mozilla's Lightbeam: A Leading Indicator on How U.S. Internet Giants Have Become Privacy Advocates! | Big Data Big Analytics](https://pbicorp.files.wordpress.com/2015/09/lightbeam.jpg)