Red Hat Security Advisory 2017-3382-01 - Mozilla Firefox is an open source web browser. This update upgrades Firefox to version 52.5.1 ESR. Security Fix: A privacy flaw was discovered in Firefox. In Private Browsing mode, a web worker could write persistent data to IndexedDB, which was not cleared when exiting and would persist across multiple sessions. A malicious website could exploit the flaw to bypass private-browsing protections and uniquely fingerprint visitors.
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