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** Branch linked: lp:ubuntu/lucid-proposed/firefox

** Branch linked: lp:ubuntu/maverick-proposed/firefox

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https://bugs.launchpad.net/bugs/643899

Title:
  Firefox sending header "Accept-Language:
  chrome://global/locale/intl.properties"

Status in The Mozilla Firefox Browser:
  Confirmed
Status in “firefox” package in Ubuntu:
  Fix Released
Status in “firefox” source package in Natty:
  Fix Released
Status in “firefox” source package in Oneiric:
  Fix Released

Bug description:
  Binary package hint: firefox

  Upgraded from Lucid to Maverick a bit ago, and now a recent update has
  caused Firefox to start sending the wrong Accept-Language header.
  Couldn't find an existing bug report, but I see it was discussed on
  the forums: http://ubuntuforums.org/showthread.php?t=1536811

  *** TEST CASE FOR SRU ***

  As the original bug isn't easily reproducible, it isn't possible to
  verify with 100% confidence that the update fixes the actual bug.
  However, we can test with 100% confidence the bug which we *think* is
  causing this bug here.

  To prepare for this:

  1) Install the extension-developer addon from https://addons.mozilla.org/en-us/firefox/addon/extension-developer/
  2) Open about:config, and ensure that "intl.accept_languages" does not have a user value (it will have "default" in the status column and be set to a list of language codes, such as "en-gb, en").

  To test:
  1) Open a JS shell (Tools -> Extension Developer -> Javascript Shell).
  2) In the shell, click on the "enumerateWindows()" link
  3) In the list of windows, click on "chrome://browser/content/browser.xul". This puts us in main window context
  4) Enter the following:

  string=Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);
  string.data="chrome://global/locale/intl.properties";
  gPrefService.setComplexValue("intl.accept_languages", Ci.nsISupportsString, string);

  5) Check "intl.accept_languages" again in about:config

  Expected result:
  - With Firefox 4.0.1+build1+nobinonly-0ubuntu0.11.04.1, intl.accept_languages will contain the value "chrome://global/locale/intl.properties", and the status column will say "user set"
  - With Firefox 4.0.1+build1+nobinonly-0ubuntu0.11.04.2, intl.accept_languages should remain unchanged, and still display the default setting for your locale

  ProblemType: BugDistroRelease: Ubuntu 10.10
  Package: firefox 3.6.10+build1+nobinonly-0ubuntu2
  ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
  Uname: Linux 2.6.35-22-generic x86_64
  Architecture: amd64
  CheckboxSubmission: fdbdfcded0c0bb479a6b52e9ec5af131
  CheckboxSystem: edda5d4f616ca792bf437989cb597002
  Date: Mon Sep 20 15:11:14 2010
  EcryptfsInUse: Yes
  FirefoxPackages:
   firefox 3.6.10+build1+nobinonly-0ubuntu2
   firefox-gnome-support 3.6.10+build1+nobinonly-0ubuntu2
   firefox-branding 3.6.10+build1+nobinonly-0ubuntu2
   abroswer N/A
   abrowser-branding N/AInstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bashSourcePackage: firefox

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