Merge remote-tracking branch 'origin/tracking' into custom

devtools/client/shared/components/tree/tree-view.css

@@ -85,7 +85,7 @@
 
 .treeTable .treeHeaderCell {
   cursor: pointer;
-  -moz-user-select: none;
+  user-select: none;
   border-bottom: 1px solid rgba(0, 0, 0, 0.2);
   padding: 0 !important;
   background: linear-gradient(

devtools/client/shared/widgets/cubic-bezier.css

@@ -63,7 +63,7 @@
   background-size: 100% 100%, 100% 100%;
   background-position: -2px 5px, -2px 5px;
 
-  -moz-user-select: none;
+  user-select: none;
 }
 
 canvas.curve {

devtools/client/shared/widgets/filter-widget.css

@@ -16,7 +16,7 @@
 }
 
 #filter-container.dragging {
-  -moz-user-select: none;
+  user-select: none;
 }
 
 .filters-list,
@@ -96,7 +96,7 @@
 }
 
 .filter-name label {
-  -moz-user-select: none;
+  user-select: none;
   flex-grow: 1;
 }
 

devtools/client/shared/widgets/spectrum.css

@@ -101,7 +101,7 @@ http://www.briangrinstead.com/blog/keep-aspect-ratio-with-html-and-css */
 }
 
 .spectrum-dragger, .spectrum-slider {
-  -moz-user-select: none;
+  user-select: none;
 }
 
 .spectrum-alpha {