stdin.diff

--- tasks.py	2015-04-22 10:25:34.540149094 -0700
+++ -	2015-04-22 10:39:27.891606615 -0700
@@ -26,12 +26,24 @@
     installs it.
     """
     log.info('[{0}] Signing addons.'.format(len(addon_ids)))
+
+    def supports_firefox(version):
+        return Q(version__max__application=amo.FIREFOX.id,
+                 version__max__version_int__gte=version_int(version))
+
+    is_default_compatible = Q(binary_components=False,
+                              strict_compatibility=False)
+    filter = ((is_default_compatible & supports_firefox('10')) |
+              (~is_default_compatible & supports_firefox('39')))
+
+
     for version in Version.objects.filter(addon_id__in=addon_ids,
                                           addon__type=amo.ADDON_EXTENSION):
+        to_sign = version.files.filter(filter)
         if force:
-            to_sign = version.files.all()
+            to_sign = to_sign.all()
         else:
-            to_sign = [f for f in version.files.all() if not f.is_signed]
+            to_sign = [f for f in to_sign.all() if not f.is_signed]
         if not to_sign:
             log.info('Not signing addon {0}, version {1} (no files or already '
                      'signed)'.format(version.addon, version))