Mozilla security advisory (AV26-644)

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        <div><p><strong>Serial number: </strong>AV26-644<br /><strong>Date: </strong>June 30, 2026</p>

On June 30, 2026, Mozilla published a security advisory to address a vulnerability in the following product:

  • Firefox – versions prior to 152.04

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

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Article Link: https://cyber.gc.ca/en/alerts-advisories/mozilla-security-advisory-av26-644