Firefox 155+ Profile Backup component flaw (CVE-2026-84134)
CVE-2026-84134 Published on September 1, 2026
Other issue in the Profile Backup component
Other issue in the Profile Backup component. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.
Products Associated with CVE-2026-84134
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Affected Versions
Mozilla Firefox:- Version 153.2, <= 153.* is unaffected.
- Version 155, <= * is unaffected.