The vulnerability in web browsers Firefox, Firefox ESR, and the email client Thunderbird is related to a file chain storage error. This error allows attackers to access confidential data, compromise its integrity, and cause service interruptions.

The vulnerability in web browsers Firefox, Firefox ESR, and the email client Thunderbird is related to a file chain storage error, even when the file no longer exists. Exploiting this vulnerability can allow an attacker to gain access to confidential data, compromise its integrity, and cause...