diff --git a/layout/reftests/backgrounds/reftest.list b/layout/reftests/backgrounds/reftest.list
index c205ade95797..cecf2c65fcf5 100644
--- a/layout/reftests/backgrounds/reftest.list
+++ b/layout/reftests/backgrounds/reftest.list
@@ -172,7 +172,7 @@ fuzzy(0-16,0-69) fuzzy-if(skiaContent,0-95,0-2206) == attachment-local-clipping-
 fuzzy(0-80,0-500) fuzzy-if(skiaContent,0-109,0-908) == attachment-local-clipping-image-6.html attachment-local-clipping-image-6-ref.html
 
 fuzzy-if(skiaContent,0-1,0-8) fuzzy-if(webrender,0-1,0-84) == background-multiple-with-border-radius.html background-multiple-with-border-radius-ref.html
-fuzzy-if(webrender,73-93,49600-49600) == background-repeat-large-area.html background-repeat-large-area-ref.html
+fuzzy-if(webrender,10-93,49600-49600) == background-repeat-large-area.html background-repeat-large-area-ref.html
 
 fuzzy(0-30,0-474) fuzzy-if(skiaContent,0-31,0-474) == background-tiling-zoom-1.html background-tiling-zoom-1-ref.html
 
diff --git a/layout/reftests/bugs/reftest.list b/layout/reftests/bugs/reftest.list
index 8a7d607283e3..975916000d87 100644
--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -1391,7 +1391,7 @@ random-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 495385-4.html 495385-4-r
 == 501257-1a.html 501257-1-ref.html
 == 501257-1b.html 501257-1-ref.html
 == 501257-1.xhtml 501257-1-ref.xhtml
-fuzzy-if(webrender,2-6,39042-97456) == 501627-1.html 501627-1-ref.html # Bug 1481664
+fuzzy-if(webrender,0-6,0-97456) == 501627-1.html 501627-1-ref.html # Bug 1481664
 == 502288-1.html 502288-1-ref.html
 fuzzy-if(gtkWidget,0-1,0-2) == 502447-1.html 502447-1-ref.html #Bug 1315834
 == 502795-1.html 502795-1-ref.html
@@ -1772,7 +1772,7 @@ fuzzy-if(asyncPan,0-190,0-510) fuzzy-if(asyncPan&&!layersGPUAccelerated,0-102,0-
 == 827577-1b.html 827577-1-ref.html
 == 827799-1.html about:blank
 == 829958.html 829958-ref.html
-fuzzy-if(webrender&&gtkWidget,1-2,44000-152400) == 836844-1.html 836844-1-ref.html
+fuzzy-if(webrender&&gtkWidget,0-2,0-152400) == 836844-1.html 836844-1-ref.html
 == 841192-1.html 841192-1-ref.html
 == 844178.html 844178-ref.html
 fuzzy-if(OSX,0-1,0-364) fuzzy-if(skiaContent,0-1,0-320) == 846144-1.html 846144-1-ref.html
diff --git a/layout/reftests/svg/filters/css-filters/reftest.list b/layout/reftests/svg/filters/css-filters/reftest.list
index 6f77a7393f6f..32a91a0f1fa5 100644
--- a/layout/reftests/svg/filters/css-filters/reftest.list
+++ b/layout/reftests/svg/filters/css-filters/reftest.list
@@ -5,7 +5,7 @@ fuzzy-if(webrender,9-9,4780-5120) == blur.html blur-ref.html
 == blur.svg blur-ref.svg
 == blur-calc.html blur-calc-ref.html
 == blur-calc-negative.html blur-calc-negative-ref.html
-fuzzy-if(cocoaWidget&&webrender,1-1,1-1) skip-if(d2d) == blur-cap-large-radius-on-software.html blur-cap-large-radius-on-software-ref.html
+fuzzy-if(cocoaWidget&&webrender,0-1,0-1) skip-if(d2d) == blur-cap-large-radius-on-software.html blur-cap-large-radius-on-software-ref.html
 fuzzy-if(webrender,9-9,4780-5120) == blur-em-radius.html blur-em-radius-ref.html
 == blur-invalid-radius.html blur-invalid-radius-ref.html
 fuzzy-if(webrender,9-9,4780-5120) == blur-rem-radius.html blur-rem-radius-ref.html