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Topic analysis

Firefox IndexedDB Vulnerability Allows Cross-Origin Tracking

A vulnerability in Firefox and Tor Browser allows websites to link user identities across private sessions using a stable identifier derived from IndexedDB ordering. Mozilla has released a fix in Firefox 150 and ESR 140.10.0 to canonicalize the database list order.

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First seen
Apr 23, 2026, 1:35 AM
Last updated
Apr 23, 2026, 5:04 PM

Why this topic matters

Firefox IndexedDB Vulnerability Allows Cross-Origin Tracking is currently shaped by signals from 1 source platforms. This page organizes AI analysis summaries, 1 timeline events, and 0 relationship edges so search engines and AI systems can understand the topic's factual basis and propagation arc.

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Keywords

8 tags
privacy vulnerabilitycross-origin trackingbrowser fingerprintingprivate browsingTor BrowserIndexedDBFirefox securityprocess identifier

Source evidence

1 evidence items

We found a stable Firefox identifier linking all your private Tor identities

News · 1
Apr 23, 2026, 1:35 AMOpen original source

Timeline

We found a stable Firefox identifier linking all your private Tor identities

Apr 23, 2026, 1:35 AM

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