--- a/layout/reftests/box-shadow/reftest.list
+++ b/layout/reftests/box-shadow/reftest.list
@@ -6,17 +6,17 @@ random != boxshadow-blur-2.html boxshado
 == boxshadow-multiple.html boxshadow-multiple-ref.html
 == boxshadow-spread.html boxshadow-spread-ref.html
 == tableboxshadow-basic.html tableboxshadow-basic-ref.html
 == tableboxshadow-trshadow.html tableboxshadow-trshadow-ref.html
 == tableboxshadow-tdshadow.html tableboxshadow-tdshadow-ref.html
 == boxshadow-rounding.html boxshadow-rounding-ref.html
 # One uses old path, one uses WR box shadow.
 fails-if(Android) == boxshadow-button.html boxshadow-button-ref.html
-fuzzy-if(OSX==1010,1,24) fuzzy-if(d2d,16,908) fuzzy-if(webrender,68-68,1440-1440) == boxshadow-large-border-radius.html boxshadow-large-border-radius-ref.html # Bug 1209649
+fuzzy-if(OSX==1010,1,24) fuzzy-if(d2d,16,908) fuzzy-if(webrender,47-47,1080-1080) == boxshadow-large-border-radius.html boxshadow-large-border-radius-ref.html # Bug 1209649
 
 fails-if(Android) == boxshadow-fileupload.html boxshadow-fileupload-ref.html
 fuzzy-if(skiaContent,13,28) fuzzy-if(webrender,25,48) == boxshadow-inner-basic.html boxshadow-inner-basic-ref.svg
 random-if(layersGPUAccelerated) == boxshadow-mixed.html boxshadow-mixed-ref.html
 == boxshadow-mixed-2.html boxshadow-mixed-2-ref.html
 random-if(d2d) fuzzy-if(skiaContent,1,100) fuzzy-if(webrender,127,3528) == boxshadow-rounded-spread.html boxshadow-rounded-spread-ref.html
 fuzzy-if(skiaContent,1,50) == boxshadow-dynamic.xul boxshadow-dynamic-ref.xul
 random-if(d2d) == boxshadow-onecorner.html boxshadow-onecorner-ref.html