--- a/layout/reftests/box-shadow/reftest.list
+++ b/layout/reftests/box-shadow/reftest.list
@@ -6,20 +6,20 @@ 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) 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,18,2160) == 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,23,1920) == 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,29-29,453-453) == boxshadow-inner-basic.html boxshadow-inner-basic-ref.svg
+fuzzy-if(skiaContent,13,28) fuzzy-if(webrender,25-25,50-50) == 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) fails-if(stylo) HTTP(..) == boxshadow-dynamic.xul boxshadow-dynamic-ref.xul # bug 1408235
 random-if(d2d) fails-if(webrender) == boxshadow-onecorner.html boxshadow-onecorner-ref.html
 random-if(d2d) fails-if(webrender) == boxshadow-twocorners.html boxshadow-twocorners-ref.html
 random-if(d2d) fails-if(webrender) == boxshadow-threecorners.html boxshadow-threecorners-ref.html
 fuzzy(2,440) fuzzy-if(webrender,25,1300) == boxshadow-skiprect.html boxshadow-skiprect-ref.html

--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -300,17 +300,17 @@ fuzzy-if(Android,3,50) fuzzy-if(skiaCont
 == 280708-1a.html 280708-1-ref.html
 == 280708-1b.html 280708-1-ref.html
 == 281241-1.html 281241-1-ref.html
 == 281241-2.xhtml 281241-1-ref.html
 == 283686-1.html about:blank
 == 283686-2.html 283686-2-ref.html
 == 283686-3.html about:blank
 == 289384-1.xhtml 289384-ref.xhtml
-random-if(d2d) fuzzy-if(Android,8,1439) skip-if(styloVsGecko) fuzzy-if(webrender,14-14,88-88) HTTP == 289480.html#top 289480-ref.html # basically-verbatim acid2 test, HTTP for a 404 page -- bug 578114 for the d2d failures, bug 1354406
+random-if(d2d) fuzzy-if(Android,8,1439) skip-if(styloVsGecko) HTTP == 289480.html#top 289480-ref.html # basically-verbatim acid2 test, HTTP for a 404 page -- bug 578114 for the d2d failures, bug 1354406
 == 290129-1.html 290129-1-ref.html
 == 291078-1.html 291078-1-ref.html
 == 291078-2.html 291078-2-ref.html
 == 291262-1.html 291262-1-ref.html
 == 294306-1.html 294306-1a-ref.html
 != 294306-1.html 294306-1b-ref.html
 == 296361-1.html 296361-ref.html
 == 296904-1.html 296904-1-ref.html

--- a/layout/reftests/css-break/reftest.list
+++ b/layout/reftests/css-break/reftest.list
@@ -1,12 +1,12 @@
 default-preferences pref(layout.css.box-decoration-break.enabled,true)
 
 == box-decoration-break-1.html box-decoration-break-1-ref.html
-fuzzy(1,20) fuzzy-if(skiaContent,1,700) fuzzy-if(webrender,8-8,242-242) == box-decoration-break-with-inset-box-shadow-1.html box-decoration-break-with-inset-box-shadow-1-ref.html
+fuzzy(1,20) fuzzy-if(skiaContent,1,700) fuzzy-if(webrender,7-7,316-316) == box-decoration-break-with-inset-box-shadow-1.html box-decoration-break-with-inset-box-shadow-1-ref.html
 fuzzy(45,460) fuzzy-if(skiaContent,57,439) fuzzy-if(Android,57,1330) fuzzy-if(styloVsGecko,45,1410) == box-decoration-break-with-outset-box-shadow-1.html box-decoration-break-with-outset-box-shadow-1-ref.html # Bug 1386543
 random-if(!gtkWidget) HTTP(..) == box-decoration-break-border-image.html box-decoration-break-border-image-ref.html
 == box-decoration-break-block-border-padding.html box-decoration-break-block-border-padding-ref.html
 == box-decoration-break-block-margin.html box-decoration-break-block-margin-ref.html
 fuzzy-if(!Android,1,62) fuzzy-if(Android,8,6627) == box-decoration-break-first-letter.html box-decoration-break-first-letter-ref.html #Bug 1313773
 == box-decoration-break-with-bidi.html box-decoration-break-with-bidi-ref.html
 == box-decoration-break-bug-1235152.html box-decoration-break-bug-1235152-ref.html
 == box-decoration-break-bug-1249913.html box-decoration-break-bug-1249913-ref.html

--- a/layout/reftests/transform-3d/reftest.list
+++ b/layout/reftests/transform-3d/reftest.list
@@ -31,17 +31,17 @@ fuzzy-if(winWidget,143,689) fuzzy-if(OSX
 == translate3d-1a.html translate3d-1-ref.html
 fuzzy-if(skiaContent,1,4) == matrix3d-1a.html matrix3d-1-ref.html
 == matrix3d-2a.html matrix3d-2-ref.html
 == rotate3d-1a.html rotatex-1-ref.html
 fuzzy-if(webrender,0-1,0-6) == rotate3d-2a.html rotatey-1-ref.html
 != backface-visibility-1a.html about:blank
 == backface-visibility-1b.html about:blank
 == backface-visibility-1c.html about:blank
-fuzzy-if(winWidget&&!layersGPUAccelerated,1,251) == backface-visibility-2.html backface-visibility-2-ref.html
+fuzzy-if(winWidget&&!layersGPUAccelerated,1,251) fuzzy-if(webrender,1-1,13-13) == backface-visibility-2.html backface-visibility-2-ref.html
 == backface-visibility-3.html backface-visibility-3-ref.html
 == perspective-clipping-1.html perspective-clipping-1-ref.html
 == perspective-clipping-2.html perspective-clipping-2-ref.html
 != perspective-origin-1a.html rotatex-perspective-1a.html
 fuzzy-if(webrender,0-1,0-3) == perspective-origin-1b.html perspective-origin-1a.html
 fuzzy(3,99) random-if(Android&&!browserIsRemote) == perspective-origin-2a.html perspective-origin-2-ref.html # subpixel AA, bug 732568
 fuzzy-if(winWidget&&!layersGPUAccelerated,1,61) == perspective-origin-3a.html perspective-origin-3-ref.html
 == perspective-origin-4a.html perspective-origin-4-ref.html