Firefox AVC when enabling non-permissive mode (Arch)

[spease]

Getting the following error with firefox that kills it, safe mode and non-safe-mode.

time->Mon Dec 16 09:15:43 2024
type=PROCTITLE msg=audit(1734369343.641:2608): proctitle="/usr/lib/firefox/firefox"
type=SYSCALL msg=audit(1734369343.641:2608): arch=c000003e syscall=56 success=yes exit=101852 a0=10000011 a1=0 a2=0 a3=0 items=0 ppid=2055 pid=101850 auid=1000 uid=1000 gid=100 euid=1000 suid=1000 fsuid=1000 egid=100 sgid=100 fsgid=100 tty=(none) ses=2 comm="firefox" exe="/usr/lib/firefox/firefox" subj=system_u:system_r:kernel_t key=(null)
type=AVC msg=audit(1734369343.641:2608): avc:  denied  { create } for  pid=101850 comm="firefox" scontext=system_u:system_r:kernel_t tcontext=system_u:system_r:kernel_t tclass=user_namespace permissive=1
----
time->Mon Dec 16 09:15:43 2024
type=PROCTITLE msg=audit(1734369343.711:2609): proctitle="/usr/lib/firefox/firefox"
type=SYSCALL msg=audit(1734369343.711:2609): arch=c000003e syscall=9 success=yes exit=30504631468032 a0=1bbe69b90000 a1=10000 a2=5 a3=32 items=0 ppid=2055 pid=101850 auid=1000 uid=1000 gid=100 euid=1000 suid=1000 fsuid=1000 egid=100 sgid=100 fsgid=100 tty=(none) ses=2 comm="firefox" exe="/usr/lib/firefox/firefox" subj=system_u:system_r:kernel_t key=(null)
type=AVC msg=audit(1734369343.711:2609): avc:  denied  { execmem } for  pid=101850 comm="firefox" scontext=system_u:system_r:kernel_t tcontext=system_u:system_r:kernel_t tclass=process permissive=1

Binary seems to be correctly labeled:

.rwxr-xr-x 862k root system_u:object_r:mozilla_exec_t 11 Dec 03:21 /usr/lib/firefox/firefox

This is very early in my SELinux journey, so it's also possible something on my system is misconfigured. Happy to read more about SELinux if I haven't provided enough information.