F30 - Firefox dying overnight

I woke up this morning, and Firefox was gone! Friday morning this happened as well (Friday night system was in suspend mode). Here is what I see in messages: Jun 28 01:13:57 lx140e kernel: [   2545]  1000  2545   780500 103687  4698112   231023             0 firefox Jun 28 01:13:57 lx140e kernel: oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=vcpu0,mems_allowed=0,global_oom,task_memcg=/user.slice/user-1000.slice/session-2.scope,task=firefox,pid=2545,uid=1000 Jun 28 01:13:57 lx140e kernel: Out of memory: Killed process 2545 (firefox) total-vm:3122000kB, anon-rss:412084kB, file-rss:0kB, shmem-rss:2672kB Jun 28 01:13:57 lx140e kernel: oom_reaper: reaped process 2545 (firefox), now anon-rss:0kB, file-rss:0kB, shmem-rss:2492kB Jun 28 15:20:58 lx140e kernel: [   2234]  1000  2234   743016 171693  3813376    49412             0 firefox Jun 29 22:40:28 lx140e kernel: [   2234]  1000  2234   695486 83746  3575808    60327             0 firefox Jun 30 01:53:35 lx140e kernel: [   2234]  1000  2234   702265 79566  3653632    67283             0 firefox Jun 30 04:40:30 lx140e kernel: [   2234]  1000  2234   868665 178572  4984832   139543             0 firefox Jun 30 04:40:30 lx140e kernel: oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/user.slice/user-1000.slice/session-2.scope,task=firefox,pid=2234,uid=1000 Jun 30 04:40:30 lx140e kernel: Out of memory: Killed process 2234 (firefox) total-vm:3474660kB, anon-rss:711064kB, file-rss:0kB, shmem-rss:3224kB Jun 30 04:40:30 lx140e kernel: oom_reaper: reaped process 2234 (firefox), now anon-rss:0kB, file-rss:0kB, shmem-rss:3056kB Config issue or bug?  I could not find anything about this in bugzilla.