diff --git a/uriloader/exthandler/tests/mochitest/mochitest.ini b/uriloader/exthandler/tests/mochitest/mochitest.ini
index dcfd2074e32..f1798989bf7 100644
--- a/uriloader/exthandler/tests/mochitest/mochitest.ini
+++ b/uriloader/exthandler/tests/mochitest/mochitest.ini
@@ -1,5 +1,5 @@
 [DEFAULT]
-skip-if = buildapp == 'b2g' || e10s
+skip-if = buildapp == 'b2g'
 support-files =
   handlerApp.xhtml
   handlerApps.js
@@ -7,5 +7,6 @@ support-files =
 
 [test_badMimeType.html]
 [test_handlerApps.xhtml]
-skip-if = (toolkit == 'android' || os == 'mac') # OS X: bug 786938
+skip-if = (toolkit == 'android' || os == 'mac') || e10s # OS X: bug 786938
 [test_unsafeBidiChars.xhtml]
+skip-if = e10s