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)