CVE-2026-84127 is a vulnerability in Mozilla Firefox
Published on September 1, 2026
Information disclosure in the WebExtensions component in Firefox for Android
Information disclosure in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 155.
Products Associated with CVE-2026-84127
Want to know whenever a new CVE is published for Mozilla Firefox? stack.watch will email you.
Affected Versions
Mozilla Firefox:- Version 155, <= * is unaffected.