Description of problem:
SELinux is preventing /usr/lib/xulrunner/plugin-container from 'execmod' accesses on the file /usr/java/jre1.7.0_25/lib/i386/client/libjvm.so.

*****  Plugin restorecon (55.7 confidence) suggests  *************************

If você deseja reparar este rótulo.
/usr/java/jre1.7.0_25/lib/i386/client/libjvm.so rótulo padrão deve ser textrel_shlib_t.
Then você pode executar o restorecon.
Do
# /sbin/restorecon -v /usr/java/jre1.7.0_25/lib/i386/client/libjvm.so

*****  Plugin mozplugger (41.9 confidence) suggests  *************************

If you want to use the plugin package
Then you must turn off SELinux controls on the Firefox plugins.
Do
# setsebool unconfined_mozilla_plugin_transition 0

*****  Plugin catchall_labels (3.26 confidence) suggests  ********************

If you want to allow plugin-container to have execmod access on the libjvm.so file
Then você precisará mudar o rótulo em /usr/java/jre1.7.0_25/lib/i386/client/libjvm.so
Do
# semanage fcontext -a -t FILE_TYPE '/usr/java/jre1.7.0_25/lib/i386/client/libjvm.so'
onde FILE_TYPE é um dos seguintes: alsa_home_t, audio_home_t, auth_home_t, cache_home_t, config_home_t, data_home_t, dbus_home_t, fetchmail_home_t, gconf_home_t, git_user_content_t, gkeyringd_gnome_home_t, gnome_home_t, gpg_secret_t, gstreamer_home_t, home_bin_t, home_cert_t, httpd_user_content_t, httpd_user_htaccess_t, httpd_user_ra_content_t, httpd_user_rw_content_t, httpd_user_script_exec_t, icc_data_home_t, iceauth_home_t, irc_home_t, irc_tmp_t, irssi_home_t, kismet_home_t, krb5_home_t, local_login_home_t, mail_home_rw_t, mail_home_t, mandb_home_t, mozilla_home_t, mpd_user_data_t, mplayer_home_t, mysqld_home_t, polipo_cache_home_t, polipo_config_home_t, procmail_home_t, pulseaudio_home_t, rlogind_home_t, rssh_ro_t, rssh_rw_t, screen_home_t, spamc_home_t, ssh_home_t, svirt_home_t, telepathy_cache_home_t, telepathy_data_home_t, telepathy_gabble_cache_home_t, telepathy_logger_cache_home_t, telepathy_logger_data_home_t, telepathy_mission_control_cache_home_t, telepathy_mission_control_data_home_t, telepathy_mission_control_home_t, telepathy_sunshine_home_t, textrel_shlib_t, thumb_home_t, tvtime_home_t, uml_ro_t, uml_rw_t, user_fonts_cache_t, user_fonts_config_t, user_fonts_t, user_home_t, user_tmp_t, user_tmpfs_t, virt_content_t, virt_home_t, vmware_conf_t, vmware_file_t, wine_home_t, wireshark_home_t, xauth_home_t, xdm_home_t. 
Então execute: 
restorecon -v '/usr/java/jre1.7.0_25/lib/i386/client/libjvm.so'


*****  Plugin catchall (1.05 confidence) suggests  ***************************

If você acredita que o plugin-container deva ser permitido acesso de execmod em libjvm.so file  por default.
Then você precisa reportar este como um erro.
Você pode gerar um módulo de política local para permitir este acesso.
Do
permitir este acesso agora executando:
# grep plugin-containe /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c
                              0.c1023
Target Context                unconfined_u:object_r:usr_t:s0
Target Objects                /usr/java/jre1.7.0_25/lib/i386/client/libjvm.so [
                              file ]
Source                        plugin-containe
Source Path                   /usr/lib/xulrunner/plugin-container
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           xulrunner-22.0-4.fc18.i686
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-98.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.10.4-100.fc18.i686.PAE #1 SMP
                              Thu Aug 1 21:25:13 UTC 2013 i686 i686
Alert Count                   3
First Seen                    2013-08-09 09:19:06 BRT
Last Seen                     2013-08-13 08:13:52 BRT
Local ID                      c3a5708d-7286-453e-89ff-b0fedeac7979

Raw Audit Messages
type=AVC msg=audit(1376392432.430:318): avc:  denied  { execmod } for  pid=1703 comm="plugin-containe" path="/usr/java/jre1.7.0_25/lib/i386/client/libjvm.so" dev="sdc3" ino=281162 scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:usr_t:s0 tclass=file


type=SYSCALL msg=audit(1376392432.430:318): arch=i386 syscall=mprotect success=no exit=EACCES a0=b4f96000 a1=512000 a2=5 a3=b60dea80 items=0 ppid=1629 pid=1703 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 ses=1 tty=(none) comm=plugin-containe exe=/usr/lib/xulrunner/plugin-container subj=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 key=(null)

Hash: plugin-containe,mozilla_plugin_t,usr_t,file,execmod

audit2allow

#============= mozilla_plugin_t ==============
allow mozilla_plugin_t usr_t:file execmod;

audit2allow -R
require {
	type usr_t;
	type mozilla_plugin_t;
	class file execmod;
}

#============= mozilla_plugin_t ==============
allow mozilla_plugin_t usr_t:file execmod;


Additional info:
reporter:       libreport-2.1.5
hashmarkername: setroubleshoot
kernel:         3.10.4-100.fc18.i686.PAE
type:           libreport