Opera crashing

[steve%prd.co.uk@localhost (Steve Blinkhorn)]

I built Opera from /usr/pkgsrc on NetBSD-7.0 amd64. At first it seemed to work,
but now it segfaults:

% opera
opera [crash logging]: CRASH!!
/usr/pkg/lib/opera/opera got signal SIGSEGV at address 7F7FF7FF64D0

The crash log does not help.

So I tried again and got Bus error.

Where do I start?  Or is there another browser that actually works out
of the box?  I haven't been able to make Firefox work for years.

-- 
Steve Blinkhorn <steve%prd.co.uk@localhost>