Through a series of popups that reuse windowName, an attacker can cause a window to go fullscreen without the user seeing the notification prompt, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.
https://www.mozilla.org/security/advisories/mfsa2022-49/
https://www.mozilla.org/security/advisories/mfsa2022-48/