[Bug 1564137] Re: Ubuntu browsers not loading/rendering certain websites correctly

[Vitor]

** Description changed:

- Since the last time I upgraded the Ubuntu packages, I noticed that Firefox is the only browser not loading Youtube, Facebook and others as it should. The visual part of the page becomes very... simplistic, like a pure and badly configured CSS or HTML file...
+ Since the last time I upgraded the Ubuntu packages, I noticed that Firefox is not loading Youtube, Facebook and others as it should. The visual part of the page becomes very... simplistic, like a pure and badly configured CSS or HTML file...
  I took screenshots of how those websites are shown now (attached to this bug report).
  
  It is impossible to watch videos in Youtube now, because it's not
  loading properly.
  
  Now Google Chromium is also showing this same bug...
  
- I do not know if this bug extends to security, because I'm not a
+ I do not know if this bug extends anyhow to security, because I'm not a
  programmer, I cannot verify what happens in the "background", I can only
  see the visible part of the software (the front-end), and I know that
  the rendering has something wrong in ALL famous browsers on Ubuntu.
+ 
+ Midori and Google Chrome (the proprietary one) are working properly.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: firefox 45.0+build2-0ubuntu0.14.04.1
  ProcVersionSignature: Ubuntu 3.13.0-83.127-lowlatency 3.13.11-ckt35
  Uname: Linux 3.13.0-83-lowlatency x86_64
  AddonCompatCheckDisabled: False
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  vitor      2370 F.... pulseaudio
  BuildID: 20160304114926
  Channel: Unavailable
  CurrentDesktop: Unity
  Date: Wed Mar 30 19:38:10 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 2016-03-14 (16 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  IpRoute:
   default via 192.168.0.1 dev wlan0  proto static
   192.168.0.0/24 dev wlan0  proto kernel  scope link  src 192.168.0.15  metric 9
  Locales: extensions.sqlite corrupt or missing
  MostRecentCrashID: bp-a3fa40f8-ca32-4598-afdc-fb3bf2160219
  PrefSources:
   prefs.js
   [Profile]/extensions/anttoolbar at ant.com/defaults/preferences/defaults.js
  Profiles: Profile0 (Default) - LastVersion=45.0/20160304114926
  RelatedPackageVersions:
   totem-mozilla              3.10.1-1ubuntu4
   rhythmbox-mozilla          3.0.2-0ubuntu2
   browser-plugin-libreoffice 1:4.2.8-0ubuntu4
  RunningIncompatibleAddons: False
  SourcePackage: firefox
  SubmittedCrashIDs:
   bp-a3fa40f8-ca32-4598-afdc-fb3bf2160219
   bp-6f0e393c-5ea9-433f-aee9-1a5fb2160119
  Themes: extensions.sqlite corrupt or missing
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/16/2013
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V2.21
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: EA50_HC_HR
  dmi.board.vendor: Acer
  dmi.board.version: Type2 - Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Insyde Corp.
  dmi.chassis.version: V2.21
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.21:bd12/16/2013:svnAcer:pnAspireE1-531:pvrV2.21:rvnAcer:rnEA50_HC_HR:rvrType2-BoardVersion:cvnInsydeCorp.:ct10:cvrV2.21:
  dmi.product.name: Aspire E1-531
  dmi.product.version: V2.21
  dmi.sys.vendor: Acer

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https://bugs.launchpad.net/bugs/1564137

Title:
  Ubuntu browsers not loading/rendering certain websites correctly

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