Security Vulnerabilities fixed in Firefox ESR 91.9 #CVE-2022-29914: Fullscreen notification bypass using popups #CVE-2022-29909: Bypassing permission prompt in nested browsing contexts #CVE-2022-29916: Leaking browser history with CSS variables #CVE-2022-29911: iframe Sandbox bypass #CVE-2022-29912: Reader mode bypassed SameSite cookies #CVE-2022-29917: Memory safety bugs fixed in Firefox 100 and Firefox ESR 91.9