--- a/layout/reftests/css-animations/reftest.list
+++ b/layout/reftests/css-animations/reftest.list
@@ -33,17 +33,17 @@ test-pref(layers.offmainthreadcompositio
 fails-if(webrender) == stacking-context-transform-none-animation-with-preserve-3d.html stacking-context-animation-ref.html
 == stacking-context-transform-none-with-fill-backwards.html stacking-context-animation-ref.html
 == stacking-context-transform-none-with-fill-forwards.html stacking-context-animation-ref.html
 == stacking-context-opacity-1-in-delay.html stacking-context-animation-ref.html
 == stacking-context-opacity-removing-important-in-delay.html stacking-context-animation-ref.html
 == stacking-context-transform-none-in-delay.html stacking-context-animation-ref.html
 == stacking-context-transform-removing-important-in-delay.html stacking-context-animation-ref.html
 fails == background-position-in-delay.html background-position-ref.html # This test fails the reftest-opaque-layer check since animating background-position currently creates an active layer from its delay phse, and reftest-opaque-layer only handles items assigned to PaintedLayers.
-== background-position-after-finish.html background-position-ref.html
+fails-if(webrender) == background-position-after-finish.html background-position-ref.html
 fails == background-position-running.html background-position-ref.html # This test fails the reftest-opaque-layer check since animating background-position currently creates an active layer, and reftest-opaque-layer only handles items assigned to PaintedLayers.
 fails == background-position-important.html background-position-ref.html # This test fails the reftest-opaque-layer check since animating background-position overridden by a non-animated !important style also creates an active layer, and reftest-opaque-layer only handles items that are assigned to PaintedLayers.
 
 == mask-position-after-finish-1a.html mask-anim-ref.html
 == mask-position-after-finish-1b.html mask-anim-ref.html
 == mask-position-in-delay-1a.html mask-anim-ref.html
 == mask-position-in-delay-1b.html mask-anim-ref.html
 == mask-size-after-finish-1a.html mask-anim-ref.html

--- a/layout/reftests/layers/reftest.list
+++ b/layout/reftests/layers/reftest.list
@@ -1,16 +1,16 @@
 == move-to-background-1.html move-to-background-1-ref.html
 fuzzy-if(cocoaWidget,2,6) random-if(Android) == component-alpha-exit-1.html component-alpha-exit-1-ref.html # bug 760275
-!= pull-background-1.html about:blank
-random-if(styloVsGecko) != pull-background-2.html about:blank
+fails-if(webrender) != pull-background-1.html about:blank
+fails-if(webrender) random-if(styloVsGecko) != pull-background-2.html about:blank
 fails-if(webrender) != pull-background-3.html about:blank
 fails-if(webrender) != pull-background-4.html about:blank
-fuzzy-if(styloVsGecko,1,1) != pull-background-5.html about:blank
-!= pull-background-6.html about:blank
+fails-if(webrender) fuzzy-if(styloVsGecko,1,1) != pull-background-5.html about:blank
+fails-if(webrender) != pull-background-6.html about:blank
 # The animated-position tests are disabled for intermittent failures / passes, bug 1150941
 skip != pull-background-animated-position-1.html about:blank # Fails with event regions
 skip != pull-background-animated-position-2.html about:blank
 skip != pull-background-animated-position-3.html about:blank # Fails because PaintedLayer item assignment doesn't recognize overflow:hidden clips
 skip != pull-background-animated-position-4.html about:blank # Fails because PaintedLayer item assignment and background pulling don't recognize overflow:hidden clips
 skip != pull-background-animated-position-5.html about:blank # Fails because ownLayer bounds don't anticipate changes of animated contents, but doesn't fail with event regions
 skip-if(!asyncPan) != pull-background-displayport-1.html about:blank
 skip-if(!asyncPan) random-if(styloVsGecko) != pull-background-displayport-2.html about:blank

--- a/layout/reftests/reftest-sanity/reftest.list
+++ b/layout/reftests/reftest-sanity/reftest.list
@@ -175,32 +175,32 @@ skip-if(!asyncPan||!browserIsRemote) == 
 default-preferences pref(layers.low-precision-buffer,false)
 skip-if(!asyncPan||!browserIsRemote) != async-scroll-1b.html async-scroll-1-ref.html
 default-preferences
 
 skip-if(!Android) pref(apz.allow_zooming,true) != async-zoom-1.html async-zoom-1-ref.html
 fuzzy(112,800) skip-if(!Android) pref(apz.allow_zooming,true) == async-zoom-2.html async-zoom-2-ref.html
 
 # reftest-opaque-layer
-== reftest-opaque-layer-pass.html reftest-opaque-layer-pass.html
-!= reftest-opaque-layer-pass.html about:blank
-!= about:blank reftest-opaque-layer-pass.html
+fails-if(webrender) == reftest-opaque-layer-pass.html reftest-opaque-layer-pass.html
+fails-if(webrender) != reftest-opaque-layer-pass.html about:blank
+fails-if(webrender) != about:blank reftest-opaque-layer-pass.html
 fails == reftest-opaque-layer-fail.html reftest-opaque-layer-fail.html
 
 # If reftest-opaque-layer fails (no matter whether it fails in the test or in the reference),
 # it shouldn't matter whether the test matches the reference.
 fails != reftest-opaque-layer-fail.html reftest-opaque-layer-fail.html
 fails == reftest-opaque-layer-fail.html about:blank
 fails-if(!styloVsGecko) == about:blank reftest-opaque-layer-fail.html
 fails != reftest-opaque-layer-fail.html about:blank
 fails-if(!styloVsGecko) != about:blank reftest-opaque-layer-fail.html
 
 # reftest-opaque-layer and reftest-wait
-== reftest-opaque-layer-wait-pass.html reftest-opaque-layer-pass.html
-!= reftest-opaque-layer-wait-pass.html about:blank
+fails-if(webrender) == reftest-opaque-layer-wait-pass.html reftest-opaque-layer-pass.html
+fails-if(webrender) != reftest-opaque-layer-wait-pass.html about:blank
 fails fails-if(styloVsGecko) == reftest-opaque-layer-wait-fail.html reftest-opaque-layer-fail.html
 fails-if(!styloVsGecko) fails-if(styloVsGecko) != reftest-opaque-layer-wait-fail.html about:blank
 
 # reftest-assigned-layer
 != reftest-assigned-layer-pass.html about:blank
 fails-if(!styloVsGecko) fails-if(styloVsGecko) != reftest-assigned-layer-fail-1.html about:blank
 fails-if(!styloVsGecko) fails-if(styloVsGecko) != reftest-assigned-layer-fail-2.html about:blank
 fails-if(!styloVsGecko) fails-if(styloVsGecko) != reftest-assigned-layer-fail-3.html about:blank