Backed out changeset 37298a30f66d (bug 1636057) for xpcshell failures CLOSED TREE

browser/base/content/browser.css

@@ -1036,7 +1036,6 @@ toolbarpaletteitem[place="palette"] > #downloads-button[indicator] > .toolbarbut
 }
 
 @supports -moz-bool-pref("xul.panel-animations.enabled") {
-@media (prefers-reduced-motion: no-preference) {
 %ifdef MOZ_WIDGET_COCOA
   /* On Mac, use the properties "-moz-window-transform" and "-moz-window-opacity"
      instead of "transform" and "opacity" for these animations.
@@ -1101,7 +1100,6 @@ toolbarpaletteitem[place="palette"] > #downloads-button[indicator] > .toolbarbut
   }
 %endif
 }
-}
 
 /* Apply crisp rendering for favicons at exactly 2dppx resolution */
 @media (resolution: 2dppx) {

toolkit/content/xul.css

@@ -240,7 +240,6 @@ tooltip {
 }
 
 @supports -moz-bool-pref("xul.panel-animations.enabled") {
-@media (prefers-reduced-motion: no-preference) {
 %ifdef MOZ_WIDGET_COCOA
   /* On Mac, use the properties "-moz-window-transform" and "-moz-window-opacity"
      instead of "transform" and "opacity" for these animations.
@@ -305,7 +304,6 @@ tooltip {
   }
 %endif
 }
-}
 
 panel[type="arrow"][animating] {
   pointer-events: none;