The vulnerability of the performance.getEntries() method in browsers such as Mozilla Firefox, Firefox ESR, and the email client Thunderbird allows a malicious actor to bypass security restrictions and gain unauthorized access to protected information.

The vulnerability of the performance.getEntries method in Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to the inclusion of functions from an unverified controlled area. Exploiting this vulnerability could allow a remote attacker to obtain URL records from various...