Bookmarks Toolbar Toggler Missing from View>Toolbars Menu

[Lonnie Lee Best]

In Ubuntu 18.04, running the unity desktop, Firefox 59's "View > Taskbars" menu is missing "Bookmarks Tool bar".

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: firefox 59.0.1+build1-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: lonnie 5782 F.... pulseaudio
BuildID: 20180316161208
Channel: Unavailable
CurrentDesktop: Unity:Unity7:ubuntu
Date: Fri Mar 23 17:47:00 2018
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2018-02-09 (42 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180208)
IpRoute:
 default via 10.0.2.2 dev enp0s3 proto dhcp metric 100
 10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15 metric 100
 169.254.0.0/16 dev enp0s3 scope link metric 1000
IwConfig:
 enp0s3 no wireless extensions.

 lo no wireless extensions.
Locales: extensions.sqlite corrupt or missing
PrefSources: prefs.js
Profiles: Profile0 (Default) - LastVersion=59.0.1/20180316161208 (In use)
RfKill:

RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.board.name: VirtualBox
dmi.board.vendor: Oracle Corporation
dmi.board.version: 1.2
dmi.chassis.type: 1
dmi.chassis.vendor: Oracle Corporation
dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr:
dmi.product.family: Virtual Machine
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH