diff --git a/toolkit/mozapps/installer/windows/nsis/check-locales.pl b/toolkit/mozapps/installer/windows/nsis/check-locales.pl
deleted file mode 100755
index ad674ddc6781..000000000000
--- a/toolkit/mozapps/installer/windows/nsis/check-locales.pl
+++ /dev/null
@@ -1,115 +0,0 @@
-#!/usr/bin/perl -w
-# ***** BEGIN LICENSE BLOCK *****
-# Version: MPL 1.1/GPL 2.0/LGPL 2.1
-#
-# The contents of this file are subject to the Mozilla Public License Version
-# 1.1 (the "License"); you may not use this file except in compliance with
-# the License. You may obtain a copy of the License at
-# http://www.mozilla.org/MPL/
-#
-# Software distributed under the License is distributed on an "AS IS" basis,
-# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
-# for the specific language governing rights and limitations under the
-# License.
-#
-# The Original Code is Mozilla Installer locale verification.
-#
-# The Initial Developer of the Original Code is Mozilla Foundation
-# Portions created by the Initial Developer are Copyright (C) 2006
-# the Initial Developer. All Rights Reserved.
-#
-# Contributor(s):
-#  Robert Strong <robert.bugzilla@gmail.com>
-#
-# Alternatively, the contents of this file may be used under the terms of
-# either the GNU General Public License Version 2 or later (the "GPL"), or
-# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
-# in which case the provisions of the GPL or the LGPL are applicable instead
-# of those above. If you wish to allow use of your version of this file only
-# under the terms of either the GPL or the LGPL, and not to allow others to
-# use your version of this file under the terms of the MPL, indicate your
-# decision by deleting the provisions above and replace them with the notice
-# and other provisions required by the GPL or the LGPL. If you do not delete
-# the provisions above, a recipient may use your version of this file under
-# the terms of any one of the MPL, the GPL or the LGPL.
-#
-# ***** END LICENSE BLOCK *****
-
-# Note: this was written using compare-locales.pl as a template.
-
-$failure = 0;
-
-sub readProperties
-{
-    my ($file) = @_;
-
-    open PROPS, "<$file" || die ("Couldn't open file $file");
-
-    local $/ = undef;
-    my $contents = <PROPS>;
-    close PROPS;
-
-    $contents =~ s/\\$$//gm;
-
-    return $contents =~ /^\s*([^#!\n]*)$/gm;
-}
-
-sub checkProperties
-{
-    my ($path) = @_;
-
-    my @invalid;
-
-    my @entities = readProperties("$gSourceDir/$path");
-
-    foreach my $entity (@entities) {
-        if ($entity =~ m|.*(\$\(\^Name\)).*| ||
-            $entity =~ m|.*(\$\(\^NameDA\)).*| ||
-            $entity =~ m|.*(\$\{BrandFullName\}).*| ||
-            $entity =~ m|.*(\$\{BrandShortName\}).*|) {
-            push @invalid, "$entity\n    *** incorrect variable usage please refer to en-US";
-        }
-    }
-
-    if (@invalid) {
-        $failure = 1;
-        print "Properties in $path using invalid values:\n";
-        if (@invalid) {
-            print "  In $gSourceDir: (change these in your localization)\n";
-            map { print "    $_\n"; } @invalid;
-        }
-    }
-}
-
-sub checkDir
-{
-    my ($path) = @_;
-
-    my (@entries);
-
-    opendir(DIR, "$gSourceDir/$path") ||
-        die ("Couldn't list $gSourceDir/$path");
-    @entries = grep(!(/^(\.|CVS)/ || /~$/), readdir(DIR));
-    closedir(DIR);
-
-    foreach my $file (@entries) {
-        if (-d "$gSourceDir/$path/$file") {
-            checkDir("$path/$file");
-        } else {
-            if ($file =~ /\.properties$/) {
-               checkProperties("$path/$file");
-            }
-        }
-    }
-}
-
-local ($gSourceDir) = @ARGV;
-($gSourceDir) || die("Specify one directory to verify");
-
-if (!-d $gSourceDir) {
-    die("Not a directory");
-}
-
-checkDir(".");
-
-exit $failure;