I'm not finding a core file. But when I edit preferences fonts and save I get a segfault: [lrc@social lrc]$ mozilla &  19510 [lrc@social lrc]$ mozilla &  19521  Segmentation fault mozilla [lrc@social lrc]$ The fonts get changed. I guess it's one way to make sure people restart.
reporter: what Build ID is this?
If this works with recent builds, this is a dupe of bug 68208.
works for me on 2001051813/Linux. I'm assuming this wasn't reported using an earlier 010518 build, as they all crashed opening preferences due to bug 81629.
*** This bug has been marked as a duplicate of 68208 ***