Description
When the address bar was hidden due to scrolling on Android, a malicious page could create a fake address bar to fool the user in response to a visibilitychange event. This vulnerability was fixed in Firefox 144.
Affected products
mozilla: firefox; google: android
References2
- www.mozilla.org/security/advisories/mfsa2025-81/ Vendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1980808 Issue TrackingPermissions Required
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - EPSS — exploit probability
- 0% percentile: 11 · as of 9 November 2026
- CWE
- CWE-451
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.