Thunderbeam-Lightbeam for Chrome
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Thunderbeam-Lightbeam for Chrome uses interactive visualizations to show users the relationship under third parties.

[We are working on the new extension to protect your privacy with GDPR: Please feel free to try our new extension:] - Thunderbeam starts recording connections as soon as it's installed. - To start visualizing your online interactions, open a new tab, navigate to a site, and then check back to the Thunderbeam tab. - Thunderbeam is used for our research study. If you consent, and only if you consent, your browser data will be used for research. Please note that even for those who consent, no personal data belonging to the users will be used (and data is hashed to prevent re-identification); any data collected will be used only for the purposes of non-commercial research, and all data will be deleted after the research project completes. - The code behind our plugin is completely open source on github for your inspection. We are happy to receive your feedback (pull requests/issues etc): Acknowledgements: - Our sincere thanks to the original version of thunderbeam, which is from Firefox (no longer supported, as of October,2019): - Our thanks also to any users who choose to support us by sharing their data. Your work is contributing to our research. Here are some papers published by our study: - Updates: Our extension supports checking cookie synchronization from now on

4.5 out of 56 ratings

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Birgitte WandallAug 14, 2022

Used to work well, but now it does no longer open, and I get a pop-up saying it has closed down. It then does not restart. Enjoyed it before, would love for it to work again.

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Yan-Maurice McNivenApr 9, 2021

Fantastic tool, eye opening to see just how observed and tracked we are!

3 out of 5 found this helpful
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Yongnan ChenOct 25, 2019

great to transfer this to Chrome, and FF's seems to stop services

3 out of 7 found this helpful


  • Version
  • Updated
    October 5, 2021
  • Offered by
  • Size
  • Languages
    English (UK)
  • Developer
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


Thunderbeam-Lightbeam for Chrome has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Thunderbeam-Lightbeam for Chrome handles the following:

Web history

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes


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