[Bug 212644] [NEW] can't install any extension

[Tian Congxin]

Public bug reported:

Binary package hint: firefox-2

Firefox extensions couldn't be installed , everytime to install any extension,it says "Unexpected installation error,Review the error console for more details ", and Error console displayed:
"
installLocation has no properties
file:///usr/lib/firefox/components/nsExtensionManager.js      Line:7647
"
Below is code possibly cause problem in file nsExtensionManager.js:
  /**
   * Gets an URL to a theme's image file
   * @param   item
   *          The RDF Resource representing the item 
   * @param   fileName
   *          The file to locate a URL for
   * @param   fallbackURL
   *          If the location fails, supply this URL instead
   * @returns An RDF Resource to the URL discovered, or the fallback
   *          if the discovery failed. 
   */
  _getThemeImageURL: function(item, fileName, fallbackURL) {
    var id = stripPrefix(item.Value, PREFIX_ITEM_URI);
    var installLocation = this._em.getInstallLocation(id);
    var file = installLocation.getItemFile(id, fileName)
    if (file.exists())
      return gRDF.GetResource(getURLSpecFromFile(file));

    if (id == stripPrefix(RDFURI_DEFAULT_THEME, PREFIX_ITEM_URI)) {
      var jarFile = getFile(KEY_APPDIR, [DIR_CHROME, FILE_DEFAULT_THEME_JAR]);
      var url = "jar:" + getURLSpecFromFile(jarFile) + "!/" + fileName;
      return gRDF.GetResource(url);
    }

    return fallbackURL ? gRDF.GetResource(fallbackURL) : null;
  },


Ubuntu: 
Description:	Ubuntu hardy (development branch)
Release:	8.04

firefox-2:
  Installed: 2.0.0.13+1nobinonly-0ubuntu1
  Candidate: 2.0.0.13+1nobinonly-0ubuntu1
  Version table:
 *** 2.0.0.13+1nobinonly-0ubuntu1 0
        500 http://archive.ubuntu.com hardy/universe Packages
        100 /var/lib/dpkg/status

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

-- 
can't install any extension
https://bugs.launchpad.net/bugs/212644
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