Public bug reported:

I found that Font Awesome icons on http://data.gov.tw is wrongly rendered on 
Firefox but not in Chrome:
(Screenshot attatched)

According to the Font Awesome's page of one of the icons and some Google
research it seems that those characters are in 0xE000 - 0xF8FF : Private
Use.

I found out that it's UnDotum font that provides the glyph, is it really
necessary to assign glyphs in that area?

### Producing environment

    Ubuntu 14.04LTS
    Mozilla Firefox 43.0
    Google Chrome 47.0.2526.106
    fonts-unfonts-core 1.0.3.is.1.0.2-080608-10ubuntu1 from Ubuntu 14.04 
software repository

### Upstream bug report
http://kldp.net/projects/unfonts/issue/318678

Thanks in advance!

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: fonts-unfonts-core 1.0.3.is.1.0.2-080608-10ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-74.118-generic 3.13.11-ckt30
Uname: Linux 3.13.0-74-generic i686
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: i386
CurrentDesktop: Unity
Date: Tue Jan  5 18:51:09 2016
InstallationDate: Installed on 2015-10-02 (94 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417)
PackageArchitecture: all
SourcePackage: fonts-unfonts-core
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: fonts-unfonts-core (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 trusty

** Attachment added: "Bug reproducing screenshot"
   
https://bugs.launchpad.net/bugs/1531126/+attachment/4544278/+files/Bug%20reproducing%20screenshot.png

** Summary changed:

- Usage of Private Use zone(0xE000 - 0xF8FF) in "UnDotum" font causes Font 
Awesome icon rendered wrongly in Mozilla Firefox
+ Usage of Private Use zone(0xE000 - 0xF8FF) in "UnDotum" font causes Font 
Awesome icons rendered wrongly in Mozilla Firefox

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https://bugs.launchpad.net/bugs/1531126

Title:
  Usage of Private Use zone(0xE000 - 0xF8FF) in "UnDotum" font causes
  Font Awesome icons rendered wrongly in Mozilla Firefox

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