No menus in Unity after upgrading to 20.04

[Alistair Cunningham]

In Ubuntu 19.10, the Firefox menus appeared as normal. After upgrading to Ubuntu 20.04 beta, with Firefox 75.0+build3-0ubuntu1, the Firefox menus no longer appear either on the window or the title bar. This happens both when the window is maximised and when it isn't.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: firefox 75.0+build3-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
AddonCompatCheckDisabled: False
ApportVersion: 2.20.11-0ubuntu26
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alistair 2490 F.... pulseaudio
BuildID: 20200403170909
CasperMD5CheckResult: skip
Channel: Unavailable
CurrentDesktop: Unity:Unity7:ubuntu
Date: Mon Apr 13 09:55:56 2020
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
 dns-search integrics.com
IncompatibleExtensions:
 English (GB) Language Pack - <email address hidden>
 English (South Africa) Language Pack - <email address hidden>
 Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
InstallationDate: Installed on 2017-08-16 (970 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
IpRoute:
 default via 10.12.0.1 dev enp0s31f6 proto dhcp metric 100
 10.12.0.0/21 dev enp0s31f6 proto kernel scope link src 10.12.3.219 metric 100
 169.254.0.0/16 dev enp0s31f6 scope link metric 1000
MostRecentCrashID: bp-3d145359-2f62-4b35-a046-86be50191125
PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:733
PrefSources: prefs.js
Profiles: Profile0 (Default) - LastVersion=75.0/20200403170909 (In use)
RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: Upgraded to focal on 2020-04-12 (0 days ago)
dmi.bios.date: 11/29/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: N1WET57W (1.36 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20HFCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN1WET57W(1.36):bd11/29/2019:svnLENOVO:pn20HFCTO1WW:pvrThinkPadT470s:rvnLENOVO:rn20HFCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T470s
dmi.product.name: 20HFCTO1WW
dmi.product.sku: LENOVO_MT_20HF_BU_Think_FM_ThinkPad T470s
dmi.product.version: ThinkPad T470s
dmi.sys.vendor: LENOVO

[Sebastien Bacher (seb128)]

Thank you for your bug report, the change is explained in this upload
https://launchpad.net/ubuntu/+source/firefox/72.0+build4-0ubuntu1

' * Remove debian/patches/unity-menubar.patch before the LTS release
    to minimize the maintenance effort'

The application is usable without the integrated menu and the maintainance work was too high to justify keeping the patch which isn't used in our default desktop/for most of our users

[Alistair Cunningham (acunningham)]

So what you're saying is that you literally can't be bothered providing features as basic as menus in Unity?

[Olivier Tilloy (osomon)]

No he's not saying that. He's saying the cost of providing this "basic feature" is too high for our capacity and the perceived benefit, given that unity is not the default desktop environment any longer, and that firefox has long ago moved to a single menu that gives access to everything.

[Alistair Cunningham (acunningham)]

I see. I think you need to explain this change to users within Firefox itself. Once 20.04 becomes stable, I think you're going to have a lot more people viewing this as a bug and complaining.

You probably also want to make Thunderbird consistent. I know they're different applications, but most people view Firefox and Thunderbird as siblings with a common user interface style.

[Egmont Koblinger (egmont-gmail)]

See also bug #1859123.

[Olivier Tilloy (osomon)]

@Alistair: good point, consistency is now restored in 20.04 with thunderbird 1:68.7.0+build1-0ubuntu2.