The updated packages fix security vulnerabilities:
Queued up rendering could have allowed websites to clickjack. (CVE-2023-5721)
Address bar spoofing via bidirectional characters. (CVE-2023-5732)
Large WebGL draw could have led to a crash. (CVE-2023-5724)
WebExtensions could open arbitrary URLs. (CVE-2023-5725)
Improper object tracking during GC in the JavaScript engine could have led to a crash. (CVE-2023-5728)
Memory safety bugs fixed in Firefox 119, Firefox ESR 115.4, and Thunderbird 115.4.1. (CVE-2023-5730)