[Bug 1660051] [NEW] refresh problems with multi-process

[Antoine Pitrou]

Public bug reported:

With Ubuntu's build of Firefox 51, enabling multi-process produces
refresh problems when switching tabs.  In detail, here is what I did:

1) create a new profile
2) start firefox with that new profile (so no add-ons)
3) display "about:support" and check that multi-process is on
4) open a few other tabs on various web pages
5) switch between tabs: most of the time, the display is not refreshed, the old tab's contents is still there

Then I tried Mozilla's officiel build of Firefox 51 for Linux
(specifically the French x86-64 version), and I had no problems: display
is refreshed when I switch tabs.

There must be something different in the Ubuntu build.  Note I have a
NVidia card and use the proprietary driver (I'm assuming detailed info
is uploaded as part of the bug report process?).

Additional information: I have Ubuntu's AppArmor profile for Firefox
enabled.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: firefox 51.0.1+build2-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
Uname: Linux 4.4.0-59-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl nvidia_uvm nvidia_drm nvidia_modeset nvidia
AddonCompatCheckDisabled: False
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
BuildID: 20170125172221
Channel: Unavailable
CurrentDesktop: XFCE
Date: Sat Jan 28 17:55:13 2017
DefaultProfileIncompatibleExtensions: Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
DefaultProfilePlugins:
 IcedTea-Web Plugin (using IcedTea-Web 1.6.2 (1.6.2-3ubuntu1)) - /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so (icedtea-8-plugin)
 bjninstallplugin - /usr/lib/firefox-addons/plugins/npbjninstallplugin_2.180.71.8.so
 bjnplugin - /usr/lib/firefox-addons/plugins/npbjnplugin_2.180.71.8.so
 Google Talk Plugin Video Renderer - /opt/google/talkplugin/libnpo1d.so (google-talkplugin)
 Google Talk Plugin - /opt/google/talkplugin/libnpgoogletalk.so (google-talkplugin)
DefaultProfilePrefErrors: 'utf-8' codec can't decode byte 0xe9 in position 7414: invalid continuation byte
DefaultProfilePrefSources: [Profile]/extensions/masterpasswordtimeoutplus at vano/defaults/preferences/masterpasswordplus.js
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2013-04-12 (1386 days ago)
InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130409)
MostRecentCrashID: bp-eb109c63-e3b5-4c21-a920-d262b2150407
Profile1Extensions: extensions.sqlite corrupt or missing
Profile1IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile1Locales: extensions.sqlite corrupt or missing
Profile1Plugins:
 Google Talk Plugin Video Renderer - /opt/google/talkplugin/libnpo1d.so (google-talkplugin)
 Google Talk Plugin - /opt/google/talkplugin/libnpgoogletalk.so (google-talkplugin)
 IcedTea-Web Plugin (using IcedTea-Web 1.6.2 (1.6.2-3ubuntu1)) - /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so (icedtea-8-plugin)
 bjninstallplugin - /usr/lib/firefox-addons/plugins/npbjninstallplugin_2.180.71.8.so
 bjnplugin - /usr/lib/firefox-addons/plugins/npbjnplugin_2.180.71.8.so
Profile1PrefSources: prefs.js
Profile1Themes: extensions.sqlite corrupt or missing
Profiles:
 Profile0 (Default) - LastVersion=51.0.1/20170125172221 (In use)
 Profile1 - LastVersion=51.0.1/20170125094131 (Out of date)
RfKill:
 
RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: Upgraded to xenial on 2015-07-27 (550 days ago)
dmi.bios.date: 06/22/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1801
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8H67-M EVO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1801:bd06/22/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8H67-MEVO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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Title:
  refresh problems with multi-process

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