Firefox 136.0.4 Release Notes
Firefox 136.0.4 Release Notes

www.mozilla.org
Firefox 136.0.4, See All New Features, Updates and Fixes

Firefox 136.0.4 Release Notes
Firefox 136.0.4, See All New Features, Updates and Fixes
Attackers were able to confuse the parent process into leaking handles into unpriviled child processes leading to a sandbox escape. The original vulnerability was being exploited in the wild.
This only affects Firefox on Windows. Other operating systems are unaffected.