firefox won't start, 2011Q2

[Anne Bennett <anne%porcupine.montreal.qc.ca@localhost>]

I've just rebuilt all my pkg software with 2011Q2; I rebooted the
system to make sure that all running daemons are up to date.  Now
invoking firefox results in an immediate exit (with exitcode zero);
nothing is issued on stdout or stderr, nothing is syslogged aside
from X logging the client connections and disconnections:

    AUDIT: Tue Aug  2 18:32:54 2011: 893: client 12 connected from local host ( 
uid=1043 gid=100 ) Auth name: MIT-MAGIC-COOKIE-1 ID: 179
    AUDIT: Tue Aug  2 18:32:54 2011: 893: client 12 disconnected
    AUDIT: Tue Aug  2 18:32:54 2011: 893: client 12 connected from local host ( 
uid=1043 gid=100 ) Auth name: MIT-MAGIC-COOKIE-1 ID: 179
    AUDIT: Tue Aug  2 18:32:54 2011: 893: client 14 connected from local host ( 
uid=1043 gid=100 ) Auth name: MIT-MAGIC-COOKIE-1 ID: 179
    AUDIT: Tue Aug  2 18:32:54 2011: 893: client 14 disconnected
    AUDIT: Tue Aug  2 18:32:54 2011: 893: client 12 disconnected

I tried moving aside my ".mozilla" directory in case something in
there was causing a problem; that had no effect.  I can report
that firefox *does* build a new .mozilla directory:

    : quill[anne]:/home/a/anne ; \ls -R .mozilla/
    firefox

    .mozilla/firefox:
    luzsle8c.default    profiles.ini

    .mozilla/firefox/luzsle8c.default:
    bookmarks.html      compatibility.ini   mimeTypes.rdf       prefs.js
    chrome              localstore.rdf      permissions.sqlite  startupCache

    .mozilla/firefox/luzsle8c.default/chrome:
    userChrome-example.css    userContent-example.css

    .mozilla/firefox/luzsle8c.default/startupCache:

I tried ktrace, but its not obvious (to me) at first glance what's
wrong, and debugging further would take a lot of time.

This is on:
   NetBSD quill.porcupine.montreal.qc.ca 5.1_STABLE NetBSD 5.1_STABLE 
(QUILL_I386-$Revision: 2010-01-05 $) #42: Sun Jul 17 23:02:15 EDT 2011  
root%quill.porcupine.montreal.qc.ca@localhost:/disks/plain/nobackup/NetBSD-5.0.1/usr/obj/sys/arch/i386/compile/QUILL_I386
 i386


Has anyone seen anything like this?  If not, I may have to downgrade
to 2011Q1.

Note: I was at 2010Q4; 2011Q2 is indicated as "latest stable" on
the web site, so I was disappointed that "pkg_add" reported no
package available for almost all the software.  I decided to just
build from scratch, but in retrospect I should have used a release
that had the packages already built.  I have only one machine
running NetBSD, and it's my desktop.  I can't afford to have it
not fully functional for very long.  :-(

Sorry about the sparse detail; I usually like to look things up
for a while before I call for help, but without firefox, it's
painful.


Anne.
-- 
Ms. Anne Bennett, as a private citizen:  anne%porcupine.montreal.qc.ca@localhost
Also reachable more officially at work:  anne%encs.concordia.ca@localhost