Firfox coredumps

[root@archbox coredump]# coredumpctl -1 info /usr/lib/firefox/plugin-container
           PID: 8134 (plugin-containe)
           UID: 1000 (javier)
           GID: 100 (users)
        Signal: 11 (SEGV)
     Timestamp: mer 2016-04-13 18:48:35 CEST (5min ago)
  Command Line: /usr/lib/firefox/plugin-container /usr/lib/mozilla/plugins/libflashplayer.so -greomni /usr/lib/firefox/omni.ja -appomni /usr/lib/firefox/brows
    Executable: /usr/lib/firefox/plugin-container
 Control Group: /
         Slice: -.slice
       Boot ID: cf41e3282957499eb8e7be07b4d0d9b2
    Machine ID: 9735a67699d89d0444e2c8434b028298
      Hostname: archbox
      Coredump: /var/lib/systemd/coredump/core.plugin-containe.1000.cf41e3282957499eb8e7be07b4d0d9b2.8134.1460566115000000000000.lz4
       Message: Process 8134 (plugin-containe) of user 1000 dumped core.

                Stack trace of thread 8136:
                #0  0x0000556aa228d37a _Z14mozalloc_abortPKc (plugin-container)
                #1  0x00007fb8f25cc3a8 NS_DebugBreak (libxul.so)
                #2  0x00007fb8f0570caf n/a (libxul.so)
                #3  0x00007fb8f057507d n/a (libxul.so)
                #4  0x00007fb8eb259a12 event_base_loop (libevent-2.0.so.5)
                #5  0x00007fb8f26b4b76 n/a (libxul.so)
                #6  0x00007fb8f26b4aa2 n/a (libxul.so)
                #7  0x00007fb8f26b6d82 n/a (libxul.so)
                #8  0x00007fb8f26b6cb7 n/a (libxul.so)
                #9  0x00007fb8f3f21424 start_thread (libpthread.so.0)
                #10 0x00007fb8ee8b5cbd __clone (libc.so.6)

                Stack trace of thread 8163:
                #0  0x00007fb8f3f2703f pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0)
                #1  0x00007fb8dcdd1b6c n/a (libflashplayer.so)
                #2  0x00007fb8dca0fef0 n/a (libflashplayer.so)
                #3  0x00007fb8dcdd1dcc n/a (libflashplayer.so)
                #4  0x00007fb8dcdd231e n/a (libflashplayer.so)
                #5  0x00007fb8f3f21424 start_thread (libpthread.so.0)
                #6  0x00007fb8ee8b5cbd __clone (libc.so.6)

                Stack trace of thread 8134:
                #0  0x00007fb8f3f29e4c __lll_lock_wait (libpthread.so.0)
                #1  0x00007fb8f3f23bee pthread_mutex_lock (libpthread.so.0)
                #2  0x00007fb8ef6380f9 PR_Lock (libnspr4.so)
                #3  0x00007fb8f0577053 n/a (libxul.so)
                #4  0x00007fb8f062eabd n/a (libxul.so)
                #5  0x00007fb8f1342ec9 n/a (libxul.so)
                #6  0x00007fb8dcd67ff5 n/a (libflashplayer.so)
                #7  0x00007fb8dc997aed n/a (libflashplayer.so)
                #8  0x00007fb8dcc9de18 n/a (libflashplayer.so)
                #9  0x0000072aef8b9bc4 n/a (n/a)
[root@archbox coredump]# coredumpctl -1 info /usr/lib/firefox/firefox
           PID: 8027 (firefox)
           UID: 1000 (javier)
           GID: 100 (users)
        Signal: 11 (SEGV)
     Timestamp: mer 2016-04-13 18:48:26 CEST (6min ago)
  Command Line: firefox
    Executable: /usr/lib/firefox/firefox
 Control Group: /user.slice/user-1000.slice/session-c1.scope
          Unit: session-c1.scope
         Slice: user-1000.slice
       Session: c1
     Owner UID: 1000 (javier)
       Boot ID: cf41e3282957499eb8e7be07b4d0d9b2
    Machine ID: 9735a67699d89d0444e2c8434b028298
      Hostname: archbox
      Coredump: /var/lib/systemd/coredump/core.firefox.1000.cf41e3282957499eb8e7be07b4d0d9b2.8027.1460566106000000000000.lz4
       Message: Process 8027 (firefox) of user 1000 dumped core.

                Stack trace of thread 8027:
                #0  0x00007f22c3ef4d59 raise (libpthread.so.0)
                #1  0x00007f22b609f8dc n/a (libxul.so)
                #2  0x00007f22b650ff41 n/a (libxul.so)
                #3  0x00007f22c3ef4e80 __restore_rt (libpthread.so.0)
                #4  0x00007f22c2285d30 gdk_window_get_user_data (libgdk-3.so.0)
                #5  0x00007f22b59a054a n/a (libxul.so)
                #6  0x00007f22b59a0763 n/a (libxul.so)
                #7  0x00007f22b5cd2b29 n/a (libxul.so)
                #8  0x00007f22b5cd2cb8 n/a (libxul.so)
                #9  0x00007f22b689bcfd n/a (libxul.so)
                #10 0x00007f22b689a421 n/a (libxul.so)
                #11 0x00007f22b6899f86 n/a (libxul.so)
                #12 0x00007f22b689d66a n/a (libxul.so)
                #13 0x00007f22b66fb8eb n/a (libxul.so)
                #14 0x00007f22b6e02b4e n/a (libxul.so)
                #15 0x00007f22b6e037bb n/a (libxul.so)
                #16 0x00007f22b6e97fd4 n/a (libxul.so)
                #17 0x00007f22b5608a59 n/a (libxul.so)
                #18 0x00007f22b674d694 n/a (libxul.so)
                #19 0x00007f22b6b52afe n/a (libxul.so)
                #20 0x00007f22b6b56380 n/a (libxul.so)
                #21 0x00007f22b6b53251 n/a (libxul.so)
                #22 0x00007f22b6b223a7 _ZNK2js18DirectProxyHandler3getEP9JSContextN2JS6HandleIP8JSObjectEENS4_INS3_5ValueEEENS4_I4jsidEENS3_13MutableHandleIS8
                #23 0x00007f22b6b218f7 _ZN2js17proxy_GetPropertyEP9JSContextN2JS6HandleIP8JSObjectEENS3_INS2_5ValueEEENS3_I4jsidEENS2_13MutableHandleIS7_EE (l
                #24 0x00007f22b6b55ca7 n/a (libxul.so)
                #25 0x00007f22b6b44d49 n/a (libxul.so)
                #26 0x00007f22b6b436de n/a (libxul.so)
                #27 0x00007f22b6b52b8d n/a (libxul.so)
                #28 0x00007f22b6ad56ca n/a (libxul.so)
                #29 0x00007f22b6ad55c4 n/a (libxul.so)
                #30 0x00007f22b6b52afe n/a (libxul.so)
                #31 0x00007f22b6b562f5 n/a (libxul.so)
                #32 0x00007f22b69dd2a5 n/a (libxul.so)
                #33 0x00007f22c4152280 n/a (n/a)