Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 115.9.1 ESR. Security Fix: nss: timing attack against RSA decryption Mozilla: Crash in NSS TLS method Mozilla: JIT code failed to save return registers on Armv7-A Mozilla: Integer overflow could have led to out of bounds write Mozilla: Improve handling of out-of-memory conditions in ICU Mozilla: Improper handling of html and body tags enabled CSP nonce leakage Mozilla: Clickjacking vulnerability could have led to a user accidentally granting permissions Mozilla: Self referencing object could have potentially led to a use-after-free Mozilla: Memory safety bugs fixed in Firefox 124, Firefox ESR 115.9, and Thunderbird 115.9 Mozilla: Privileged JavaScript Execution via Event Handlers For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.