# Lightbeam not working

**URL:** <https://discourse.mozilla.org/t/lightbeam-not-working/26938>\
**Category:** Add-on Support\
**Tags:** lightbeam\
**Created:** [March 25, 2018, 1:18am UTC](https://discourse.mozilla.org/t/lightbeam-not-working/26938 "2018-03-25T01:18:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dcperich3](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@dcperich3](https://discourse.mozilla.org/u/dcperich3)\
**Post date:** [March 25, 2018, 1:18am UTC](https://discourse.mozilla.org/t/lightbeam-not-working/26938/1 "2018-03-25T01:18:41Z")

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I installed Lightbeam.  
My screen was initially filled with little white triangles and icons connected by lines in the Graph screen.  
Then I clicked Reset Data.  
All the icons and triangles and lines disappeared. They’ve never come back. The graph would not repopulate. Lightbeam no longer works.  
Now what?

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**Author:** ![psequeira](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@psequeira](https://discourse.mozilla.org/u/psequeira)\
**Post date:** [May 8, 2018, 7:59pm UTC](https://discourse.mozilla.org/t/lightbeam-not-working/26938/2 "2018-05-08T19:59:28Z")

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Hi there,

Reset data would have asked for your confirmation like the way from this screenshot.

 ![34](https://us1.discourse-cdn.com/flex001/uploads/mozilla/original/3X/6/5/65ee779a1435f620859f45574d09b44b0929a2db.jpeg)

To re-populate the graph, you need to build your browsing history and then Lightbeam will show the network of first and third party websites.