We are sorry that we do not always have the capacity to review all
reported bugs in a timely manner. You reported this bug some time ago
and there have been many changes in Ubuntu and Firefox since that time.

Ubuntu 15.10 (wily) reached end-of-life on July 28, 2016.

Do you still see a problem related to the one that was reported using
currently supported versions of Firefox and Ubuntu? Please let us know
if you do and in which version of Ubuntu.

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Paul White
[Ubuntu Bug Squad]

** Changed in: firefox (Ubuntu)
       Status: Confirmed => Incomplete

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1540566

Title:
  excessive memory usage when opening https://elements.polymer-
  project.org/

Status in firefox package in Ubuntu:
  Incomplete

Bug description:
  When I open specifically https://elements.polymer-project.org/ and
  https://elements.polymer-project.org/guides/flex-layout, Firefox keeps
  on eating memory until system hangs. I have 8 GB RAM  firefox eats
  upto 60% RAM with no other tabs opened. (Firefox has crashed several
  times and I restored session only opening these pages).

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: firefox 44.0+build3-0ubuntu0.15.10.1
  ProcVersionSignature: Ubuntu 4.2.0-25.30-generic 4.2.6
  Uname: Linux 4.2.0-25-generic x86_64
  AddonCompatCheckDisabled: False
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  bipin      1600 F.... pulseaudio
   /dev/snd/pcmC0D0p:   bipin      1600 F...m pulseaudio
   /dev/snd/controlC0:  bipin      1600 F.... pulseaudio
  BuildID: 20160125133541
  Channel: Unavailable
  CurrentDesktop: Unity
  Date: Tue Feb  2 01:41:25 2016
  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 2015-12-24 (39 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  IpRoute:
   default via 192.168.1.1 dev wlp3s0  proto static  metric 600 
   169.254.0.0/16 dev wlp3s0  scope link  metric 1000 
   192.168.1.0/24 dev wlp3s0  proto kernel  scope link  src 192.168.1.33  
metric 600
  Locales: extensions.sqlite corrupt or missing
  Plugins:
   Google Talk Plugin Video Renderer - /opt/google/talkplugin/libnpo1d.so 
(google-talkplugin)
   Shockwave Flash - /usr/lib/adobe-flashplugin/libflashplayer.so 
(adobe-flashplugin)
   Google Talk Plugin - /opt/google/talkplugin/libnpgoogletalk.so 
(google-talkplugin)
  PrefSources: prefs.js
  ProcEnviron:
   LANGUAGE=en_IN:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_IN
   SHELL=/bin/bash
  Profiles: Profile0 (Default) - LastVersion=44.0/20160125133541 (In use)
  RelatedPackageVersions:
   google-talkplugin 5.41.0.0-1
   adobe-flashplugin 1:20151228.1-0ubuntu0.15.10.1
  RunningIncompatibleAddons: False
  SourcePackage: firefox
  Themes: extensions.sqlite corrupt or missing
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/21/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6BCN44WW(V2.04)
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: INVALID
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900004WIN8 STD SGL
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad Y500
  dmi.modalias: 
dmi:bvnLENOVO:bvr6BCN44WW(V2.04):bd05/21/2013:svnLENOVO:pn20193:pvrLenovoIdeaPadY500:rvnLENOVO:rnINVALID:rvr31900004WIN8STDSGL:cvnLENOVO:ct10:cvrLenovoIdeaPadY500:
  dmi.product.name: 20193
  dmi.product.version: Lenovo IdeaPad Y500
  dmi.sys.vendor: LENOVO

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