Firefox 36.0.4 seg fault

Tue Mar 24 19:47:12 UTC 2015

FreeBSD pangkur.medieval.org 8.4-STABLE FreeBSD 8.4-STABLE #4: Mon Mar 23 14:29:56 PDT 2015     root at pangkur.medieval.org:/usr/obj/usr/src/sys/GENERIC  amd64

/usr/ports/www/firefox/Makefile:
     $FreeBSD: head/www/firefox/Makefile 381889 2015-03-22 08:00:19Z jbeich $

Firefox built cleanly, segmentation fault when trying to run.  No
other info returned, so very hard to debug.  (I have built Firefox
before, but it has been a few versions since I updated it.)

todd at pangkur/usr/src/etc~12:44~1031> firefox
Segmentation fault
todd at pangkur/usr/src/etc~12:44~1032> firefox -v
Mozilla Firefox 36.0.4
todd at pangkur/usr/src/etc~12:44~1033> firefox --safe-mode
Segmentation fault