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Description

Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

PUBLISHED Reserved 2026-05-19 | Published 2026-05-19 | Updated 2026-05-19 | Assigner mozilla

Product status

151 (rpm)
unaffected

151 (rpm)
unaffected

Credits

Satoki Tsuji

References

bugzilla.mozilla.org/show_bug.cgi?id=2025170

www.mozilla.org/security/advisories/mfsa2026-46/

www.mozilla.org/security/advisories/mfsa2026-50/

cve.org (CVE-2026-8964)

nvd.nist.gov (CVE-2026-8964)

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