[Bug 1593916] [NEW] Firefox froze; window came up saying [current window] "not responding"; selected close window - all FF windows vanished.

[Scott Cowles Jacobs]

Public bug reported:

Haven't had a crash/freeze in quite a while.

For a while, I couldn't use FF versions over 28, as they would never
completely load my windows/tabs, and then crashed.

At some point, I switched from using AdblockPlus to uBlock Origen, and
all was good.


Lately, the tabs seem a bit ... loosely attached? ...  I usually open up a link on a new tab, and then click on it to select it, but often lately I apparently move the mouse a bit when I do, and suddenly the tab tears off onto a new window instead.

I had just done that, and had attempted to use my scroll-wheel to move down on the page, which didn't do anything.  I tried the scroll-bar - nothing.  I tried to close the window - nothing.
A window came up saying that the window was not responding, and did I want to terminate that process.  That specific window title was mentioned, so I assumed that just that window would go away, but when I clicked on (End Process? / Close Window? - I forget the wording...), all 12 FF windows vanished.

Hopefully something in the supporting documentation will be helpful, as
"Firefox Froze" cannot be considered terribly useful...

---------------------------------------------------

scott at scott-Asus-M2N68-AM-Plus:~$ uname -a
Linux scott-Asus-M2N68-AM-Plus 4.4.0-24-generic #43-Ubuntu SMP Wed Jun 8 19:25:16 UTC 2016 i686 athlon i686 GNU/Linux
scott at scott-Asus-M2N68-AM-Plus:~$ lsb_release -dsc
Ubuntu 16.04 LTS
xenial
scott at scott-Asus-M2N68-AM-Plus:~$ echo $DESKTOP_SESSION
Lubuntu
s

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: firefox 47.0+build3-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
Uname: Linux 4.4.0-24-generic i686
NonfreeKernelModules: nvidia
AddonCompatCheckDisabled: False
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  scott      1688 F.... pulseaudio
 /dev/snd/controlC2:  scott      1688 F.... pulseaudio
 /dev/snd/controlC1:  scott      1688 F.... pulseaudio
BuildID: 20160606113900
Channel: Unavailable
CurrentDesktop: LXDE
Date: Sat Jun 18 00:38:38 2016
DefaultProfileIncompatibleExtensions:
 English (South Africa) Language Pack - langpack-en-ZA at firefox.mozilla.org
 English (GB) Language Pack - langpack-en-GB at firefox.mozilla.org
 Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
DefaultProfilePlugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
DefaultProfilePrefSources: prefs.js
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2016-05-05 (44 days ago)
InstallationMedia: Lubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1)
IpRoute:
 default via 192.168.0.1 dev wlx001f1fd8314a 
 192.168.0.0/24 dev wlx001f1fd8314a  proto kernel  scope link  src 192.168.0.2
MostRecentCrashID: bp-33012966-2403-4ed0-a9f0-e94f02160519
PciNetwork:
 
Profile1IncompatibleExtensions:
 Global Menu Bar integration - globalmenu at ubuntu.com
 English (South Africa) Language Pack - langpack-en-ZA at firefox.mozilla.org
 English (GB) Language Pack - langpack-en-GB at firefox.mozilla.org
 Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
Profile1PrefSources: prefs.js
Profiles:
 Profile0 (Default) - LastVersion=47.0/20160606113900
 Profile1 - LastVersion=28.0/20140410211157 (Out of date)
RfKill:
 
RunningIncompatibleAddons: True
SourcePackage: firefox
SubmittedCrashIDs:
 bp-33012966-2403-4ed0-a9f0-e94f02160519
 bp-649eea70-f030-4f17-857b-f9eeb2160510
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/10/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1802
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M2N68-AM Plus
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1802:bd06/10/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2N68-AMPlus:rvrRevX.0x: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: apport-bug i386 xenial

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https://bugs.launchpad.net/bugs/1593916

Title:
  Firefox froze; window came up saying [current window] "not
  responding"; selected close window - all FF windows vanished.

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