CVE-2026-84127

Impact

Information disclosure in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 155.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• https://bugzilla.mozilla.org/show_bug.cgi?id=1699444
• https://www.mozilla.org/security/advisories/mfsa2026-82/