Osint Scanning ExposureExposure

Browser extension fingerprinting by websites and SaaS portals

April 4, 2026r/cybersecurity, r/privacy

In r/privacy and r/cybersecurity, extension probing is treated as a major fingerprinting vector, with concern escalating when extension profiles are linked to real identity, employer, and role.

BrowserGate: Report alleges LinkedIn is scanning 6,000+ browser extensions without consent
Is there a good reason websites can read installed browser extensions? This should be banned to combat fingerprinting imo
We caught a SaaS portal doing this during a red team, probing extension IDs to spot password managers and web debug tools.
r/cybersecurity
r/privacy
fingerprintingbrowser extensionstrackingmicrosoftbrowser extensionstracking protection

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