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Mozilla Firefox Information Disclosure Vulnerability

August 5, 2026 · HKCERT · Severity: HIGH

A vulnerability in Mozilla Firefox for Android allows address bar spoofing, potentially leading to phishing attacks. Mozilla has released version 153.0.3 to fix the issue. Android users are advised to update immediately and exercise caution.

Key Takeaways

  • Firefox for Android address bar spoofing vulnerability could enable phishing attacks.
  • Affected versions are prior to 153.0.3; update to mitigate the risk.
  • Users should update Firefox and be cautious when entering credentials on mobile.
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