The updated packages fix security vulnerabilities. Out-of-bound memory access in WebGL2 blitFramebuffer. (CVE-2023-6204) Use-after-free in MessagePort::Entangled. (CVE-2023-6205) Clickjacking permission prompts using the fullscreen transition. (CVE-2023-6206) Use-after-free in ReadableByteStreamQueueEntry::Buffer. (CVE-2023-6207) Using Selection API would copy contents into X11 primary selection. (CVE-2023-6208) Incorrect parsing of relative URLs starting with "///". (CVE-2023-6209) Memory safety bugs fixed in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. (CVE-2023-6212)