One of the attachments suggests you have a locally modified version of
the apparmor profile for firefox, and it looks quite different from the
version shipped by the package. Are you sure you disabled apparmor? You
should unload the firefox profile, rather than completely disabling
apparmor for the system:
sudo apparmor_parser -R /etc/apparmor.d/usr.bin.firefox
** Changed in: firefox (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1874656
Title:
on ubuntu 20.04, firefox does not start well
Status in firefox package in Ubuntu:
Incomplete
Bug description:
I have upgraded from ubuntu 19.04 to 20.04 this morning.
and now firefox asks to restart.
I have also tested with a fresh firefox profile, and it is the same
problem.
the console shows the following error message
###!!! [Parent][MessageChannel] Error:
(msgtype=0x370034,name=PContent::Msg_UpdateSharedData) Channel error: cannot
send/recv
I have stopped apparmor (systemctl stop apparmor) and the problem
remain
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: firefox 75.0+build3-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: mfe_aac_100608112
AddonCompatCheckDisabled: False
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: eric 2799 F.... pulseaudio
/dev/snd/controlC1: eric 2799 F.... pulseaudio
BuildID: 20200403170909
CasperMD5CheckResult: skip
Channel: Unavailable
CurrentDesktop: ubuntu:GNOME
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read
kernel buffer failed: Operation not permitted
Date: Fri Apr 24 10:45:06 2020
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 2016-01-11 (1564 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
IpRoute:
default via 192.168.0.254 dev wlo1 proto dhcp metric 600
169.254.0.0/16 dev wlo1 scope link metric 1000
192.168.0.0/24 dev wlo1 proto kernel scope link src 192.168.0.11 metric 600
KernLog:
Locales: extensions.sqlite corrupt or missing
PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:733
PrefSources: prefs.js
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=fr_FR.UTF-8
SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=75.0/20200403170909 (In use)
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: Upgraded to focal on 2020-04-24 (0 days ago)
dmi.bios.date: 12/22/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SCF Ver. F.22
dmi.board.name: 1618
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 97.4A
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68SCFVer.F.22:bd12/22/2011:svnHewlett-Packard:pnHPEliteBook8560p:pvrA0001D02:rvnHewlett-Packard:rn1618:rvrKBCVersion97.4A:cvnHewlett-Packard:ct10:cvr:
dmi.product.family: 103C_5336AN
dmi.product.name: HP EliteBook 8560p
dmi.product.sku: WX788AV
dmi.product.version: A0001D02
dmi.sys.vendor: Hewlett-Packard
mtime.conffile..etc.apparmor.d.usr.bin.firefox: 2020-01-11T19:43:12.618232
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