--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -1177,17 +1177,17 @@ fuzzy(127,2) fails-if(webrender) == 4481
 != 449149-1a.html about:blank
 != 449149-1b.html about:blank
 # Retry the above with XBL scopes
 test-pref(dom.use_xbl_scopes_for_remote_xul,true) != 449149-1a.html about:blank
 test-pref(dom.use_xbl_scopes_for_remote_xul,true) != 449149-1b.html about:blank
 == 449149-2.html 449149-2-ref.html
 == 449171-1.html 449171-ref.html
 == 449362-1.html 449362-1-ref.html
-== 449519-1.html 449519-1-ref.html
+fuzzy-if(webrender,3,349) == 449519-1.html 449519-1-ref.html
 == 450670-1.html 450670-1-ref.html
 == 451168-1.html 451168-1-ref.html
 == 451876-1.html 451876-1-ref.html
 == 451876-2.html 451876-2-ref.html
 == 452915-1.html 452915-1-ref.html
 == 452964-1.html 452964-1-ref.html
 == 454361.html about:blank
 == 455105-1.html 455105-ref.html

--- a/layout/reftests/text-overflow/reftest.list
+++ b/layout/reftests/text-overflow/reftest.list
@@ -4,23 +4,23 @@ fuzzy-if(Android,16,244) HTTP(..) == mar
 HTTP(..) == marker-string.html marker-string-ref.html
 skip-if(Android) HTTP(..) == bidi-simple.html bidi-simple-ref.html # Fails on Android due to anti-aliasing
 skip-if(!gtkWidget) fuzzy-if(gtkWidget,2,289) HTTP(..) == bidi-simple-scrolled.html bidi-simple-scrolled-ref.html # Fails on Windows and OSX due to anti-aliasing
 fuzzy-if(Android,24,4000) fuzzy-if(cocoaWidget,1,40) fuzzy-if(asyncPan&&!layersGPUAccelerated,149,1836) HTTP(..) == scroll-rounding.html scroll-rounding-ref.html # bug 760264
 fuzzy(2,453) fuzzy-if(skiaContent,9,2100) fails-if(gtkWidget) HTTP(..) == anonymous-block.html anonymous-block-ref.html # gtkWidget:bug 1309103
 HTTP(..) == false-marker-overlap.html false-marker-overlap-ref.html
 HTTP(..) == visibility-hidden.html visibility-hidden-ref.html
 fuzzy-if(asyncPan&&!layersGPUAccelerated,102,1724) fuzzy-if(gtkWidget,10,8) HTTP(..) == block-padding.html block-padding-ref.html
-HTTP(..) == quirks-decorations.html quirks-decorations-ref.html
+HTTP(..) fuzzy-if(webrender,3,825) == quirks-decorations.html quirks-decorations-ref.html
 HTTP(..) == quirks-line-height.html quirks-line-height-ref.html
 HTTP(..) == standards-decorations.html standards-decorations-ref.html
 HTTP(..) == standards-line-height.html standards-line-height-ref.html
 fuzzy-if(skiaContent,1,4200) HTTP(..) == selection.html selection-ref.html
-HTTP(..) == marker-shadow.html marker-shadow-ref.html
-== aligned-baseline.html aligned-baseline-ref.html
+HTTP(..) fuzzy-if(webrender,5,509) == marker-shadow.html marker-shadow-ref.html
+fuzzy-if(webrender,3,25) == aligned-baseline.html aligned-baseline-ref.html
 skip-if(Android) fuzzy-if(skiaContent,1,5) == clipped-elements.html clipped-elements-ref.html
 HTTP(..) == theme-overflow.html theme-overflow-ref.html
 HTTP(..) == table-cell.html table-cell-ref.html
 fuzzy-if(gtkWidget,10,32) HTTP(..) == two-value-syntax.html two-value-syntax-ref.html
 HTTP(..) == single-value.html single-value-ref.html
 fuzzy-if(gtkWidget,10,2) HTTP(..) == atomic-under-marker.html atomic-under-marker-ref.html
 fuzzy(1,2616) skip-if(Android) fuzzy-if(asyncPan&&!layersGPUAccelerated,102,12352) fails-if(gtkWidget) HTTP(..) == xulscroll.html xulscroll-ref.html # gtkWidget:bug 1309107, bug 1328771
 HTTP(..) == combobox-zoom.html combobox-zoom-ref.html

--- a/layout/reftests/text-shadow/reftest.list
+++ b/layout/reftests/text-shadow/reftest.list
@@ -26,15 +26,15 @@ HTTP(..) == blur-opacity.html blur-opaci
 == overflow-not-scrollable-2.html overflow-not-scrollable-2-ref.html
 
 needs-focus != text-shadow-selected-1.html text-shadow-selected-1-notref.html
 fails-if(Android) fuzzy-if(skiaContent&&!Android,1,1000) needs-focus == text-shadow-selected-1.html text-shadow-selected-1-ref.html # different foreground selection color on Android
 needs-focus != text-shadow-selected-2.html text-shadow-selected-2-notref.html
 fails-if(Android) fuzzy-if(skiaContent&&!Android,1,1400) needs-focus == text-shadow-selected-2.html text-shadow-selected-2-ref.html # different foreground selection color on Android
 
 # bug 692744
-== text-shadow-on-space-1.html text-shadow-on-space-1-ref.html
+fuzzy-if(webrender,19,2872) == text-shadow-on-space-1.html text-shadow-on-space-1-ref.html
 
 # bug 721750
 needs-focus == text-shadow-on-selection-1.html text-shadow-on-selection-1-ref.html
 needs-focus == text-shadow-on-selection-2.html text-shadow-on-selection-2-ref.html
 
 == overflow-decoration.html overflow-decoration-ref.html