--- a/layout/reftests/box-shadow/reftest.list
+++ b/layout/reftests/box-shadow/reftest.list
@@ -5,35 +5,35 @@ random == boxshadow-blur-2.html boxshado
 random != boxshadow-blur-2.html boxshadow-blur-2-notref.html # fixedpoint division in blur code makes this fail
 == 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) fuzzy-if(webrender,20,3310) == boxshadow-button.html boxshadow-button-ref.html
+fails-if(Android) fuzzy-if(webrender,50,3310) == boxshadow-button.html boxshadow-button-ref.html
 fuzzy-if(OSX==1010,1,24) fuzzy-if(d2d,16,908) fuzzy-if(webrender,19,1680) == 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) == boxshadow-inner-basic.html boxshadow-inner-basic-ref.svg
 random-if(layersGPUAccelerated) == boxshadow-mixed.html boxshadow-mixed-ref.html
 random-if(d2d) fuzzy-if(skiaContent,1,100)  == boxshadow-rounded-spread.html boxshadow-rounded-spread-ref.html
 fuzzy-if(skiaContent,1,50) HTTP(..) == boxshadow-dynamic.xul boxshadow-dynamic-ref.xul
 random-if(d2d) == boxshadow-onecorner.html boxshadow-onecorner-ref.html
 random-if(d2d) == boxshadow-twocorners.html boxshadow-twocorners-ref.html
 random-if(d2d) == boxshadow-threecorners.html boxshadow-threecorners-ref.html
-fuzzy(2,440) == boxshadow-skiprect.html boxshadow-skiprect-ref.html
+fuzzy(2,440) fuzzy-if(webrender,25,1300) == boxshadow-skiprect.html boxshadow-skiprect-ref.html
 == boxshadow-opacity.html boxshadow-opacity-ref.html
 == boxshadow-color-rounding.html boxshadow-color-rounding-ref.html
 == boxshadow-color-rounding-middle.html boxshadow-color-rounding-middle-ref.html
 fuzzy(3,500) fuzzy-if(d2d,2,1080) == boxshadow-border-radius-int.html boxshadow-border-radius-int-ref.html
 == boxshadow-inset-neg-spread.html about:blank
 == boxshadow-inset-neg-spread2.html boxshadow-inset-neg-spread2-ref.html
-fuzzy(26,3610) fuzzy-if(d2d,26,5910) fails-if(stylo) == boxshadow-rotated.html boxshadow-rotated-ref.html # Bug 1211264
+fuzzy(26,3610) fuzzy-if(d2d,26,5910) fuzzy-if(webrender,43,200) fails-if(stylo) == boxshadow-rotated.html boxshadow-rotated-ref.html # Bug 1211264
 == boxshadow-inset-large-border-radius.html boxshadow-inset-large-border-radius-ref.html
 
 # fuzzy due to blur going inside, but as long as it's essentially black instead of a light gray its ok.
 fuzzy(13,9445) fuzzy-if(d2d,13,10926) fuzzy-if(webrender,14,14307) == boxshadow-inset-large-offset.html boxshadow-inset-large-offset-ref.html
 
 == overflow-not-scrollable-1.html overflow-not-scrollable-1-ref.html
 == overflow-not-scrollable-1.html overflow-not-scrollable-1-ref2.html
 == overflow-not-scrollable-2.html overflow-not-scrollable-2-ref.html

--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -1821,17 +1821,17 @@ skip-if(stylo) == 983084-2.html 983084-2
 skip-if(stylo) == 983084-3.html 983084-1-ref.html
 == 983691-1.html 983691-ref.html
 HTTP(..) == 983985-1.html 983985-1-ref.html
 HTTP(..) == 983985-2.html 983985-2-ref.html
 == 985303-1a.html 985303-1-ref.html
 == 985303-1b.html 985303-1-ref.html
 == 987680-1.html 987680-1-ref.html
 # Fuzzy on WR due to alpha blending
-fuzzy-if(d2d,1,601) fuzzy-if(webrender,1,1185) == 991046-1.html 991046-1-ref.html
+fuzzy-if(d2d,1,601) fuzzy-if(webrender,1,1473) == 991046-1.html 991046-1-ref.html
 pref(layout.css.overflow-clip-box.enabled,true) fuzzy-if(skiaContent,2,845) == 992447.html 992447-ref.html
 == 1003425-1.html 1003425-1-ref.html
 == 1003425-2.html 1003425-2-ref.html
 == 1005405-1.html 1005405-1-ref.html
 == 1012640-1.html 1012640-1-ref.html
 == 1013054-1.html 1013054-1-ref.html
 == 1018522-1.html 1018522-1-ref.html
 == 1021564-1.html 1021564-ref.html

--- a/layout/reftests/outline/reftest.list
+++ b/layout/reftests/outline/reftest.list
@@ -1,9 +1,9 @@
-fuzzy(2,18) == outline-and-box-shadow.html outline-and-box-shadow-ref.html
+fuzzy(2,18) fuzzy-if(webrender,52,1452) == outline-and-box-shadow.html outline-and-box-shadow-ref.html
 fails-if(webrender) == outline-and-3d-transform-1a.html outline-and-3d-transform-1-ref.html
 fails-if(webrender) == outline-and-3d-transform-1b.html outline-and-3d-transform-1-ref.html
 fuzzy-if(gtkWidget,136,120) fuzzy-if(Android,255,356) fuzzy-if(d2d,16,96) fuzzy-if(cocoaWidget,255,120) fuzzy-if(winWidget,255,216) fails-if(webrender) == outline-and-3d-transform-2.html outline-and-3d-transform-2-ref.html
 == outline-dynamic-change-1a.html outline-dynamic-change-1-ref.html
 == outline-dynamic-change-1b.html outline-dynamic-change-1-ref.html
 == outline-overflow-block-abspos.html outline-overflow-block-ref.html
 == outline-overflow-block-float.html outline-overflow-block-ref.html
 == outline-overflow-inlineblock-abspos.html outline-overflow-inlineblock-ref.html