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Firefox Focus vulnerabilities
3 known CVE vulnerabilities in Firefox Focus, translated and rated.
- CVE-2026-84135Critical
Other issue in Firefox Focus for Android. It was fixed in Firefox 155.
- CVE-2025-9186Medium
Firefox Focus for Android has a spoofing issue in the Address Bar component. This vulnerability was fixed in Firefox 142.
- CVE-2023-25743High
A lack of in-app notification for entering fullscreen mode could allow a malicious website to spoof browser chrome. This bug only affects Firefox Focus; other Firefox versions are unaffected. Affects Firefox < 110 and Firefox ESR < 102.8.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS