--- a/layout/reftests/w3c-css/submitted/reftest.list
+++ b/layout/reftests/w3c-css/submitted/reftest.list
@@ -51,17 +51,22 @@ include ruby/reftest.list
 
 # Selectors Level 4
 include selectors4/reftest.list
 
 # Shapes Level 1
 include shapes1/reftest.list
 
 # Text Level 3
-include text3/reftest.list
+# After Bug 1316482, we've added a large number of tests in this folder, which
+# indirectly causes frequent reftest failures on win7 debug. (see Bug 1300355)
+# Since the root cause is not these tests, skip them on win7 debug for now.
+# Once we come up with a better solution, we should re-enable this folder on
+# win7 debug.
+skip-if(winWidget&&isDebugBuild) include text3/reftest.list
 
 # Text Decoration Level 3
 include text-decor-3/reftest.list
 
 # Transforms
 include transforms/reftest.list
 
 # User Interface Level 3