Zitat von MITs Forum am 2. Juni 2023, 0:00 Uhr

An attacker could have positioned a datalist element to obscure the address bar. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.

References
https://bugzilla.mozilla.org/show_bug.cgi?id=1826622
https://www.mozilla.org/security/advisories/mfsa2023-16/
https://www.mozilla.org/security/advisories/mfsa2023-17/
https://www.mozilla.org/security/advisories/mfsa2023-18/