firefox-esr is vulnerable to a Potential Security Threat. The vulnerability is due to due to insufficient validation of user input during a sequence of API calls and redirects, enabling an attacker to control and display a malicious alert dialog on another website, with the victim website’s URL being shown.
bugzilla.mozilla.org/show_bug.cgi?id=1877879
lists.debian.org/debian-lts-announce/2024/03/msg00000.html
lists.debian.org/debian-lts-announce/2024/03/msg00001.html
security-tracker.debian.org/tracker/CVE-2024-1547
www.mozilla.org/security/advisories/mfsa2024-05/
www.mozilla.org/security/advisories/mfsa2024-06/
www.mozilla.org/security/advisories/mfsa2024-07/