Bug 1247109 - apply -moz-crisp-edges style to favicons on hidpi in the Synced Tabs sidebar. r=Gijs

browser/base/content/browser.css

@@ -599,6 +599,10 @@ toolbarbutton.bookmark-item {
   #personal-bookmarks[cui-areatype="toolbar"] > #bookmarks-toolbar-placeholder > .toolbarbutton-icon {
     image-rendering: -moz-crisp-edges;
   }
+  /* Synced Tabs sidebar */
+  html|*.tabs-container html|*.item-tabs-list html|*.item-icon-container {
+    image-rendering: -moz-crisp-edges;
+  }
 }
 
 #editBMPanel_tagsSelector {

browser/components/syncedtabs/sidebar.xhtml

@@ -20,6 +20,7 @@
     <link rel="stylesheet" type="text/css" media="all" href="chrome://browser/skin/syncedtabs/sidebar.css"/>
     <link rel="stylesheet" type="text/css" media="all" href="chrome://global/skin/"/>
     <link rel="stylesheet" type="text/css" media="all" href="chrome://global/skin/textbox.css"/>
+    <link rel="stylesheet" type="text/css" media="all" href="chrome://browser/content/browser.css"/>
     <title>&syncedTabs.sidebar.label;</title>
   </head>