A browser extension that detects and blocks websites from scanning your installed extensions
Major websites like LinkedIn silently scan for thousands of installed browser extensions to build a unique fingerprint of each visitor, tracking them across sessions without cookies. Most privacy tools block canvas or WebGL fingerprinting but completely miss this extension-enumeration vector. This tool intercepts those probe requests in real time, alerts users which sites are scanning them, and optionally returns fabricated noise to defeat the fingerprint.
Demand Breakdown
Social Proof 3 sources
Gap Assessment
4 tools exist (uBlock Origin, Privacy Badger (EFF), Canvas Blocker / Fingerprint Spoofer, Multilogin) but gaps remain: No specific detection or blocking of extension-enumeration fingerprinting probes; filter lists do not cover the resource-URL probe pattern LinkedIn uses; Does not address first-party extension-scan fingerprinting at all; LinkedIn's probe is a first-party page script, invisible to Privacy Badger's cross-site heuristic.
Features6 agent-ready prompts
Competitive LandscapeFREE
| Product | Does | Missing |
|---|---|---|
| uBlock Origin | Blocks known ad/tracker scripts and network requests using curated filter lists | No specific detection or blocking of extension-enumeration fingerprinting probes; filter lists do not cover the resource-URL probe pattern LinkedIn uses |
| Privacy Badger (EFF) | Learns and blocks cross-site trackers heuristically based on third-party tracking signals | Does not address first-party extension-scan fingerprinting at all; LinkedIn's probe is a first-party page script, invisible to Privacy Badger's cross-site heuristic |
| Canvas Blocker / Fingerprint Spoofer | Randomizes canvas, WebGL, audio context, and screen resolution fingerprint vectors | Entirely blind to the extension-scan attack vector; spoofing canvas pixels does nothing when the site is probing for installed extension resource URLs |
| Multilogin | Anti-detect browser for multi-account management; creates isolated browser profiles with spoofed fingerprints | Requires switching to a separate browser entirely; not a drop-in shield for a user's normal Chrome/Firefox; priced for affiliate marketers and e-commerce, not individual privacy users |
Leads753BUILDER
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