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Preview of CookieTrail

CookieTrail by dmjext-dev

CookieTrail reveals the hidden web of external domains communicating with your open browser tabs by capturing network requests in real-time and visualizing them as interactive graphs to identify trackers, analytics, and ads.

Available on Firefox for Android™Available on Firefox for Android™
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Extension Metadata

Screenshots
Circle Packing chart, ordered by data sizeTreemap chart, ordered by request countTreemap chart, ordered by data size
About this extension
CookieTrail 🍪🕵️‍♂️

Description:

Who is watching your browsing? CookieTrail makes invisible third-party connections visible and understandable. This extension transforms your browser's background activity into an interactive graph, showing you exactly which domains are tracking, analyzing, or serving ads to you.

Why use CookieTrail?

Transparency: See exactly what domains are being contacted by your browser.

Smart Detection: Uses local intelligence and the DuckDuckGo Tracker Radar to automatically identify third-party trackers.

Zero Data Collection: CookieTrail operates 100% locally. No external servers, no data transmission—just pure analysis.


Perfect for privacy enthusiasts and developers who want to understand browser networking.

Source code available at https://github.com/duartejeremias/CookieTrail
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Permissions and data

Required permissions:

  • Access browser tabs
  • Access browser activity during navigation

Optional permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Add-on Links
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Version
0.5
Size
290.66 KB
Last updated
24 days ago (Jan 12, 2026)
Related Categories
  • Web Development
  • Privacy & Security
  • Tabs
License
MIT License
Version History
  • See all versions
Tags
  • privacy
  • security
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