Both menu bar and "firefox" menu display at the same time.

[tim.tadh]

 This with the no "menu" bar option selected. It happens with the latest nightly for ubuntu. (16.0a1 (2012-06-21)) See attached screenshot.

Running:
Description: Ubuntu 11.10
Release: 11.10

Nightly:
16.0a1 (2012-06-21)

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: firefox-trunk 16.0~a1~hg20120620r97119-0ubuntu1~umd1~oneiric
ProcVersionSignature: Ubuntu 3.0.0-21.35-generic 3.0.32
Uname: Linux 3.0.0-21-generic x86_64
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: hendersont 1670 F.... pulseaudio
BuildID: 20120621083715
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfe9fc000 irq 47'
   Mixer name : 'Silicon Image SiI1392 HDMI'
   Components : 'HDA:83847616,1028020a,00100201 HDA:10951392,1028020a,00100000'
   Controls : 31
   Simple ctrls : 19
Channel: nightly
Date: Thu Jun 21 10:23:24 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
IpRoute:
 default via 129.22.150.1 dev eth0 proto static
 129.22.150.0/23 dev eth0 proto kernel scope link src 129.22.150.251 metric 1
 169.254.0.0/16 dev eth0 scope link metric 1000
 172.20.32.0/20 dev wlan0 proto kernel scope link src 172.20.39.166 metric 2
 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.115
Plugins:
 Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
 Skype Buttons for Kopete - /usr/lib/mozilla/plugins/skypebuttons.so (kopete)
PrefErrors: Unexpected character 'e' before comma @ [Profile]/<email address hidden>/defaults/preferences/defaults.js:26
PrefSources:
 prefs.js
 [Profile]/<email address hidden>/defaults/preferences/prefs.js
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=16.0a1/20120621083715 (In use)
RelatedPackageVersions: kopete 4:4.7.4-0ubuntu0.1
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:

dmi.bios.date: 01/14/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0N6705
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd01/14/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn0N6705:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: XPS M1330
dmi.sys.vendor: Dell Inc.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Chris Coulson (chrisccoulson)]

This works again in the current nightly

[Launchpad Janitor (janitor)]

This bug was fixed in the package firefox - 14.0~b9+build1-0ubuntu1

---------------
firefox (14.0~b9+build1-0ubuntu1) quantal; urgency=low

  * New upstream release from the beta channel (FIREFOX_14_0b9_BUILD1)

  [ Chris Coulson <email address hidden> ]
  * Update globalmenu-extension to 3.3 prerelease r386
    - Fix LP: #1016081 - Menubar is not hidden when using the Firefox
      button outside of Unity
    - Fix LP: #775305 - An empty menu appears when FFChrome is installed
    - Fix LP: #1017247 - Menubar appears in the window as well as the
      Unity panel. Manually register our UA stylesheet rather than relying
      on this happening via chrome registration, to work around a bug
      in various bootstrapped third party addons (eg, pentadactyl),
      which initialize and use the stylesheet service before extension
      chrome is registered for non-restartless addons such as ours
    - Add a small delay when opening the menu with the keyboard, so that
      the additional items are added before the menu appears. Fixes an
      issue where keyboard focus isn't on the first item when opening the
      history menu with the keyboard
  * Apport hook improvements:
    - Sort preferences alphabetically in the apport data
    - Treat preferences set in default addons as default prefs so that
      they don't show up in apport data, unless the preference files have
      been modified
    - Support random pref files dropped in to the Firefox install folder, and
      preferences from application bundles
    - Fix ordering issues when loading preferences
  * Fix LP: #1013171 - Fully support Python 3 in the apport hook
    - update debian/apport/source_firefox.py.in

  [ Martin Pitt <email address hidden> ]
  * Add partial support for Python 3 in the apport hook (LP: #1013171)
    - update debian/apport/source_firefox.py.in
 -- Chris Coulson <email address hidden> Thu, 21 Jun 2012 11:15:26 +0100