[Bug 1214051] [NEW] Firefox displays page with missing or garbaged characters

[Cliff Carson]

Public bug reported:

When displaying a web page some single characters are garbage.  This is
most noticable when displaying pages like Facebook when there are a
number of page application causing the page text to be re-written.  If
you have a lot of this re-write activity you can see random characters
disappear ( interesting the "a" was garbage after typing) and reappear.
Will add a screen shot of Facebook that has two examples.  The first
being where the "m" is missing from the Talking Points Memo header.  The
second is in the ad for Discover Card, the "c" in bank is garbage.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: firefox 23.0+build2-0ubuntu1
ProcVersionSignature: Ubuntu 3.10.0-5.15-generic 3.10.2
Uname: Linux 3.10.0-5-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.12-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  cliff      1629 F.... pulseaudio
 /dev/snd/controlC0:  cliff      1629 F.... pulseaudio
BuildID: 20130807180628
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Channel: Unavailable
CurrentDmesg:
 [   40.589285] usblp 2-2:1.1: usblp0: USB Bidirectional printer dev 2 if 1 alt 0 proto 2 vid 0x03F0 pid 0x5711
 [   40.589390] usbcore: registered new interface driver usblp
 [   40.591110] systemd-udevd[1988]: failed to execute '/lib/udev/usb-db' 'usb-db /devices/pci0000:00/0000:00:1e.0/0000:04:01.2/usb2/2-2/2-2:1.3': No such file or directory
Date: Mon Aug 19 13:15:53 2013
ForcedLayersAccel: False
InstallationDate: Installed on 2013-07-28 (21 days ago)
InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Alpha amd64 (20130728)
IpRoute:
 default via 192.168.1.1 dev eth0 
 169.254.0.0/16 dev eth0  scope link  metric 1000 
 192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.201
IwConfig:
 eth0      no wireless extensions.
 
 lo        no wireless extensions.
MarkForUpload: True
MostRecentCrashID: bp-539e7f89-c4d4-4d3c-a067-032c02130521
Plugins:
 Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
 Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell)
PrefSources:
 prefs.js
 /usr/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}/ubufox at ubuntu.com/defaults/preferences/001ubuntu-gnome-mods.js
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=23.0/20130807180628 (In use)
RelatedPackageVersions: gnome-shell 3.8.3-1ubuntu4
RfKill:
 
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/05/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V7.7
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: G41M-P33 (MS-7592)
dmi.board.vendor: MSI
dmi.board.version: 3.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 3.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV7.7:bd01/05/2010:svnSi:pnG41M-P33:pvr3.0:rvnMSI:rnG41M-P33(MS-7592):rvr3.0:cvnMSI:ct3:cvr3.0:
dmi.product.name: G41M-P33
dmi.product.version: 3.0
dmi.sys.vendor: Si

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


** Tags: amd64 apport-bug saucy

** Attachment added: "Garbage characters on screen"
   https://bugs.launchpad.net/bugs/1214051/+attachment/3778219/+files/Screenshot%20from%202013-08-19%2013%3A11%3A45.png

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Title:
  Firefox displays page with missing or garbaged characters

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