Latest FF (60.0.2) under Mac OS 10.13.4, running on a mid-2011 27" iMac. Firefox repeatedly crashes after about 30 minutes' use. Restarting with add-ons disabled doesn't help. Deleted FF and installed new copy, did not help. No particular web page causes this, nor does any particular action. FF will crash on its own even if it's not actively in use. Most recent crash reports: bp-a4425714-a20d-43e9-9ecd-542831180608 06/08/2018 4:44 AM bp-5e923843-daa2-470f-9b66-4a1c91180608 06/08/2018 3:20 AM bp-680176ec-6887-4049-88fe-56e5b1180608 06/07/2018 11:04 PM bp-e6aa74c5-f406-495b-94b6-653511180608 06/07/2018 10:39 PM bp-7b285628-cace-4d97-82e3-97cba1180607 06/07/2018 6:14 PM bp-9aaa68e0-e38c-46cf-9f79-33cee1180607 06/07/2018 5:39 PM bp-9a635281-6f09-4519-8752-398b41180607 06/07/2018 2:48 PM bp-c8327c33-d6d8-4625-9fb8-a15cd1180607 06/07/2018 2:34 PM bp-fb354090-a173-4278-9153-0af501180607 06/07/2018 2:11 PM bp-7153af82-4b7b-4df5-a64c-dd4b61180607 06/07/2018 1:17 PM Any help would be greatly appreciated - this is driving me nuts.