--- a/layout/reftests/transform-3d/reftest.list
+++ b/layout/reftests/transform-3d/reftest.list
@@ -6,17 +6,17 @@ fuzzy-if(webrender,0-1,0-6) == rotatey-1
 # Check that the perspectve() transform function results in some visual changes
 != rotatex-perspective-1a.html rotatex-1-ref.html
 # Check that -moz-perspective results in visual changes to child transformed elements
 != rotatex-perspective-1b.html rotatex-1-ref.html
 # -moz-perspective should only apply to child elements
 == rotatex-perspective-1c.html rotatex-1-ref.html
 == rotatex-perspective-3a.html rotatex-perspective-3-ref.html
 == scalez-1a.html scalez-1-ref.html
-fuzzy-if(gtkWidget||winWidget,8,376) fuzzy-if(Android,8,441) fuzzy-if(cocoaWidget,17,4) fuzzy-if(skiaContent,16,286) == preserve3d-1a.html preserve3d-1-ref.html
+fuzzy-if(gtkWidget||winWidget,8,376) fuzzy-if(Android,8,441) fuzzy-if(cocoaWidget,17,4) fuzzy-if(skiaContent,16,286) fuzzy-if(webrender&&winWidget,92-92,291-291) == preserve3d-1a.html preserve3d-1-ref.html
 == preserve3d-1b.html about:blank
 == preserve3d-clipped.html about:blank
 == preserve3d-2a.html preserve3d-2-ref.html
 == preserve3d-2b.html preserve3d-2-ref.html
 == preserve3d-2c.html preserve3d-2-ref.html
 == preserve3d-2d.html preserve3d-2-ref.html
 == preserve3d-3a.html preserve3d-3-ref.html
 == preserve3d-4a.html about:blank