diff --git a/python/mozbuild/mozpack/chrome/manifest.py b/python/mozbuild/mozpack/chrome/manifest.py
index 2e3a6bd046fd..a578ff5bd2a0 100644
--- a/python/mozbuild/mozpack/chrome/manifest.py
+++ b/python/mozbuild/mozpack/chrome/manifest.py
@@ -7,14 +7,10 @@ from __future__ import absolute_import, print_function, unicode_literals
 import re
 import os
 
-try:
-    from urlparse import urlparse
-except ImportError:
-    from urllib.parse import urlparse
-
 import mozpack.path as mozpath
 from mozpack.chrome.flags import Flags
 from mozpack.errors import errors
+from six.moves.urllib.parse import urlparse
 
 
 class ManifestEntry(object):
diff --git a/python/mozbuild/mozpack/packager/formats.py b/python/mozbuild/mozpack/packager/formats.py
index 8b998bb97e12..6ae684f99c30 100644
--- a/python/mozbuild/mozpack/packager/formats.py
+++ b/python/mozbuild/mozpack/packager/formats.py
@@ -13,7 +13,7 @@ from mozpack.chrome.manifest import (
     ManifestMultiContent,
 )
 from mozpack.errors import errors
-from urlparse import urlparse
+from six.moves.urllib.parse import urlparse
 import mozpack.path as mozpath
 from mozpack.files import ManifestFile
 from mozpack.copier import (
diff --git a/python/mozbuild/mozpack/packager/unpack.py b/python/mozbuild/mozpack/packager/unpack.py
index 197f3a1e4bcd..d1b65372ee33 100644
--- a/python/mozbuild/mozpack/packager/unpack.py
+++ b/python/mozbuild/mozpack/packager/unpack.py
@@ -24,7 +24,7 @@ from mozpack.copier import (
 )
 from mozpack.packager import SimplePackager
 from mozpack.packager.formats import FlatFormatter
-from urlparse import urlparse
+from six.moves.urllib.parse import urlparse
 
 
 class UnpackFinder(BaseFinder):