drive-by shooting of Firefox?

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

I have been using firefox60 as my NetBSD (64-bit 9.32) browser because
of its apparent stability and usability.  But today I got an error
essage:

XPCOMGlueLoad error for file /usr/pkg/lib/firefox60/libmozgtk.so:
/usr/pkg/lib/firefox60/libmozgtk.so: Shared object "libgdk-3.so.0" not
found
Couldn't load XPCOM.

Indeed I could not find the nam,ed file, but in /usr/pkg/lib there was
a libgtk-3.so.0.2400.1, so I made a symlink to that called
libgtk-3.so.0.  No improvement.  Is there something else I ought to be
doing?

More generally, though, this is likelyto be a consequence of my doing
some pkgin work a few days ago, and has all the unpredictability of a
drive-by shooting.  Is there any form of insurance available?  And is
there a better stable firefox available?  I need a browser that
woas, not to play with.

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