--- a/layout/reftests/font-inflation/reftest.list
+++ b/layout/reftests/font-inflation/reftest.list
@@ -70,17 +70,17 @@ test-pref(font.size.inflation.emPerLine,
 # Ordinarily, reftests use a browser.viewport.desktopWidth of 800px, same as the
 # size of the reftest document.  The failure condition of the test below however
 # depends on the initial window size being smaller than the viewport the
 # MobileViewportManager eventually calculates, so we use a bigger value here.
 test-pref(font.size.inflation.emPerLine,20) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,0) test-pref(browser.viewport.desktopWidth,1000) == fixed-width-body-viewport.html fixed-width-body-viewport-ref.html
 
 # The tests below use nonzero values of the lineThreshold preference.
 test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) == text-1.html text-1.html
-test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) random-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == list-1.html list-1-ref.html # Bug 1392106
+test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) random-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) skip-if(cocoaWidget) == list-1.html list-1-ref.html # Bug 1392106, Bug 1434812
 test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) == threshold-1a.html threshold-1a.html
 test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) == threshold-1b.html threshold-1b-ref.html
 test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) == threshold-1c.html threshold-1c-ref.html
 test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) == threshold-2.html threshold-2-ref.html
 test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) == threshold-3.html threshold-3-ref.html
 test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) == threshold-scope-float-1.html threshold-scope-float-1-ref.html
 test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) == threshold-scope-float-2.html threshold-scope-float-2-ref.html
 test-pref(font.size.inflation.emPerLine,15) test-pref(font.size.inflation.forceEnabled,true) test-pref(font.size.inflation.lineThreshold,100) == threshold-scope-float-overflow-1.html threshold-scope-float-overflow-1-ref.html