--- a/layout/reftests/async-scrolling/reftest.list
+++ b/layout/reftests/async-scrolling/reftest.list
@@ -4,17 +4,17 @@ skip-if(!asyncPan) == bg-fixed-cover-2.h
 skip-if(!asyncPan) == bg-fixed-cover-3.html bg-fixed-cover-3-ref.html
 skip-if(!asyncPan) == bg-fixed-child.html bg-fixed-child-ref.html
 skip-if(!asyncPan) == bg-fixed-child-clip-1.html bg-fixed-child-clip-ref.html
 skip-if(!asyncPan) == bg-fixed-child-clip-2.html bg-fixed-child-clip-ref.html
 fuzzy(1,246) fuzzy-if(skiaContent,2,160) fuzzy-if(browserIsRemote&&d2d,53,185) skip-if(!asyncPan) == bg-fixed-child-mask.html bg-fixed-child-mask-ref.html
 skip-if(!asyncPan) == bg-fixed-in-opacity.html bg-fixed-in-opacity-ref.html
 skip-if(!asyncPan) == bg-fixed-child-no-culling-1.html bg-fixed-child-no-culling-1-ref.html
 skip-if(!asyncPan) == bg-fixed-child-no-culling-2.html bg-fixed-child-no-culling-2-ref.html
-fuzzy-if(B2G,2,5366) fuzzy-if(Android,2,4000) fuzzy-if(browserIsRemote&&cocoaWidget,2,179524) fuzzy-if(browserIsRemote&&winWidget,1,74590) skip-if(!asyncPan) == bg-fixed-transformed-image.html bg-fixed-transformed-image-ref.html
+fuzzy-if(B2G,2,5366) fuzzy-if(Android,2,4000) fuzzy-if(browserIsRemote&&cocoaWidget,2,179524) fuzzy-if(browserIsRemote&&winWidget,1,74590) fuzzy-if(gtkWidget&&layersGPUAccelerated,1,3528) skip-if(!asyncPan) == bg-fixed-transformed-image.html bg-fixed-transformed-image-ref.html
 skip-if(!asyncPan) == element-1.html element-1-ref.html
 pref(layers.force-active,true) skip-if(!asyncPan) == iframe-1.html iframe-1-ref.html
 skip-if(!asyncPan) == nested-1.html nested-1-ref.html
 skip-if(!asyncPan) == nested-2.html nested-2-ref.html
 skip-if(!asyncPan) == position-fixed-1.html position-fixed-1-ref.html
 skip-if(!asyncPan) == position-fixed-2.html position-fixed-2-ref.html
 skip-if(!asyncPan) == position-fixed-body.html position-fixed-body-ref.html
 skip-if(!asyncPan) == position-fixed-cover-1.html position-fixed-cover-1-ref.html

--- a/layout/reftests/border-radius/reftest.list
+++ b/layout/reftests/border-radius/reftest.list
@@ -66,17 +66,17 @@ fuzzy-if(true,1,33) fuzzy-if(d2d,48,350)
 # Table elements
 == table-collapse-1.html table-collapse-1-ref.html # border-radius is ignored on internal table elements
 # when border-collapse: collapse
 
 fuzzy-if(azureQuartz,1,3) skip-if(B2G||Mulet) fuzzy-if(skiaContent,1,116) == invalidate-1a.html invalidate-1-ref.html # Initial mulet triage: parity with B2G/B2G Desktop
 fuzzy-if(azureQuartz,1,3) skip-if(B2G||Mulet) fuzzy-if(skiaContent,1,117) == invalidate-1b.html invalidate-1-ref.html # Initial mulet triage: parity with B2G/B2G Desktop
 
 # test that border-radius is reduced for scrollbars
-skip-if(B2G||Mulet) fails-if(Android) fuzzy-if(asyncPan&&!layersGPUAccelerated,12,12) fuzzy-if(browserIsRemote&&layersGPUAccelerated&&/^Windows\x20NT\x206\.1/.test(http.oscpu),12,12) fuzzy-if(skiaContent,1,50) == scrollbar-clamping-1.html scrollbar-clamping-1-ref.html # Initial mulet triage: parity with B2G/B2G Desktop
+skip-if(B2G||Mulet) fails-if(Android) fuzzy-if(asyncPan&&!layersGPUAccelerated,12,12) fuzzy-if(browserIsRemote&&layersGPUAccelerated&&/^Windows\x20NT\x206\.1/.test(http.oscpu),12,12) fuzzy-if(skiaContent,1,50) fuzzy-if(gtkWidget&&layersGPUAccelerated,12,12) == scrollbar-clamping-1.html scrollbar-clamping-1-ref.html # Initial mulet triage: parity with B2G/B2G Desktop
 skip-if(B2G||Mulet) fails-if(Android) == scrollbar-clamping-2.html scrollbar-clamping-2-ref.html # Initial mulet triage: parity with B2G/B2G Desktop
 
 # Test for bad corner joins.
 fuzzy-if(true,1,1) == corner-joins-1.xhtml corner-joins-1-ref.xhtml
 fuzzy(255,20) skip-if(B2G||Mulet) random-if(winWidget) fuzzy-if(skiaContent,255,610) HTTP(..) == corner-joins-2.xhtml corner-joins-2-ref.xhtml # Initial mulet triage: parity with B2G/B2G Desktop
 
 skip-if(B2G||Mulet) fuzzy-if(/^Windows\x20NT\x2010\.0/.test(http.oscpu)||/^Windows\x20NT\x206\.2/.test(http.oscpu),1,20) fuzzy-if(d2d,64,157) fuzzy-if(Android,166,400) fuzzy-if(skiaContent,64,70) == scroll-1.html scroll-1-ref.html # see bug 732535 #Bug 959166 # Initial mulet triage: parity with B2G/B2G Desktop
 

--- a/layout/reftests/transform-3d/reftest.list
+++ b/layout/reftests/transform-3d/reftest.list
@@ -63,17 +63,17 @@ fuzzy-if(winWidget&&!layersGPUAccelerate
 fails-if(!layersGPUAccelerated) == 1035611-1.html 1035611-1-ref.html # Bug 1072898 for !layersGPUAccelerated failures
 != 1157984-1.html about:blank # Bug 1157984
 fuzzy(3,99) == animate-cube-radians.html animate-cube-radians-ref.html # subpixel AA
 fuzzy(3,99) fuzzy-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)&&!layersGPUAccelerated,16,6) fuzzy-if(Mulet,16,9) == animate-cube-radians-zoom.html animate-cube-radians-zoom-ref.html
 != animate-cube-radians-ref.html animate-cube-radians-zoom-ref.html
 fuzzy(3,99) == animate-cube-degrees.html animate-cube-degrees-ref.html # subpixel AA
 == animate-cube-degrees-zoom.html animate-cube-degrees-zoom-ref.html
 != animate-cube-degrees-ref.html animate-cube-degrees-zoom-ref.html
-fuzzy-if(B2G||Android||OSX==1010,143,100) fuzzy-if(winWidget||OSX<1010,141,100) fuzzy-if(gtkWidget,128,100) == preserves3d-nested.html preserves3d-nested-ref.html
+fuzzy-if(gtkWidget,128,100) fuzzy-if(B2G||Android||OSX==1010||(gtkWidget&&layersGPUAccelerated),143,100) fuzzy-if(winWidget||OSX<1010,141,100) == preserves3d-nested.html preserves3d-nested-ref.html
 fuzzy-if(cocoaWidget,128,9) == animate-preserve3d-parent.html animate-preserve3d-ref.html # intermittently fuzzy on Mac
 fuzzy-if(cocoaWidget,128,9) == animate-preserve3d-child.html animate-preserve3d-ref.html # intermittently fuzzy on Mac
 == animate-backface-hidden.html about:blank
 == 1245450-1.html green-rect.html
 fuzzy(1,2000) == opacity-preserve3d-1.html opacity-preserve3d-1-ref.html
 fuzzy(1,15000) == opacity-preserve3d-2.html opacity-preserve3d-2-ref.html
 fuzzy(1,10000) == opacity-preserve3d-3.html opacity-preserve3d-3-ref.html
 fuzzy(1,10000) == opacity-preserve3d-4.html opacity-preserve3d-4-ref.html