Log Message:
firefox115: Update to 115.5.0

Changelog:
Fixed
    Various security fixes and other quality improvements.

Security fixes:
Mozilla Foundation Security Advisory 2023-50
#CVE-2023-6204: Out-of-bound memory access in WebGL2 blitFramebuffer
#CVE-2023-6205: Use-after-free in MessagePort::Entangled
#CVE-2023-6206: Clickjacking permission prompts using the fullscreen transition
#CVE-2023-6207: Use-after-free in ReadableByteStreamQueueEntry::Buffer
#CVE-2023-6208: Using Selection API would copy contents into X11 primary
 selection.
#CVE-2023-6209: Incorrect parsing of relative URLs starting with "///"
#CVE-2023-6212: Memory safety bugs fixed in Firefox 120, Firefox ESR 115.5, and
 Thunderbird 115.5