User-Agent:       Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0)
Gecko/20100101 Firefox/68.0
Build Identifier: 

after updat from 15.1 to 15.2 firefox does not start:
openat(AT_FDCWD, "/usr/share/glib-2.0/schemas/gschemas.compiled", O_RDONLY) =
-1 EACCES (Keine Berechtigung)
openat(AT_FDCWD, "/usr/lib64/charset.alias", O_RDONLY) = -1 ENOENT (Datei oder
Verzeichnis nicht gefunden)
openat(AT_FDCWD, "/usr/local/share/glib-2.0/schemas/gschemas.compiled",
O_RDONLY) = -1 ENOENT (Datei oder Verzeichnis nicht gefunden)
openat(AT_FDCWD,
"/var/lib/flatpak/exports/share/glib-2.0/schemas/gschemas.compiled", O_RDONLY)
= -1 ENOENT (Datei oder Verzeichnis nicht gefunden)
openat(AT_FDCWD,
"/home/users/xxxxxx/.local/share/flatpak/exports/share/glib-2.0/schemas/gschemas.compiled",
O_RDONLY) = -1 ENOENT (Datei oder Verzeichn
is nicht gefunden)
openat(AT_FDCWD,
"/home/users/robert/.local/share/glib-2.0/schemas/gschemas.compiled", O_RDONLY)
= -1 ENOENT (Datei oder Verzeichnis nicht gefunden)
....
....
write(2, "\n(firefox:8316): GLib-GIO-\33[1;31"..., 119
(firefox:8316): GLib-GIO-ERROR **: 13:02:02.163: No GSettings schemas are
installed on the system) = 119
--- SIGTRAP {si_signo=SIGTRAP, si_code=SI_KERNEL} ---
rt_sigaction(SIGTRAP, NULL, {sa_handler=0x7fd39fc4b280, sa_mask=[ILL TRAP ABRT
BUS FPE SEGV], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x
7fd3afe7c2d0}, 8) = 0
prctl(PR_SET_DUMPABLE, SUID_DUMP_USER)  = 0

Access rights prohibit read access to "gschemas.compiled" of package
"libgio-2_0-0-2.62.5-lp152.1.14.x86_64":
ll /usr/share/glib-2.0/schemas/gschemas.compiled
-rw-r----- 1 root root 84744  2. Aug 20:37
/usr/share/glib-2.0/schemas/gschemas.compiled
A local version does not exist.

If access rights are changed to:
ll /usr/share/glib-2.0/schemas/gschemas.compiled
-rw-r--r-- 1 root root 84744  2. Aug 20:37
/usr/share/glib-2.0/schemas/gschemas.compiled
firefox works.



Reproducible: Always

Steps to Reproduce:
1. upgrade to 15.2
2. start firefox
3.