pkg/52345: firefox-54.0 on amd64-current crashes

[martin%NetBSD.org@localhost]

>Number:         52345
>Category:       pkg
>Synopsis:       firefox-54.0 on amd64-current crashes
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 28 05:05:00 +0000 2017
>Originator:     Martin Husemann
>Release:        NetBSD 8.99.1
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD night-owl.duskware.de 8.99.1 NetBSD 8.99.1 (NIGHT-OWL) #516: Mon Jun 26 15:40:28 CEST 2017 martin%night-owl.duskware.de@localhost:/usr/src/sys/arch/amd64/compile/NIGHT-OWL amd64
Architecture: x86_64
Machine: amd64
>Description:

As soon as trying to surf to some site on the net, firefox crashes. The
internal pages (about box, about: urls) seem to work.

>How-To-Repeat:

Happens all the time for me, will rebuild with debug info.

>Fix:
n/a