--- a/browser/base/content/tabbrowser.js
+++ b/browser/base/content/tabbrowser.js
@@ -1774,17 +1774,16 @@ window._gBrowser = {
       // For remote browsers, we need to make sure that the webProgress is
       // instantiated, otherwise the parent won't get informed about the state
       // of the preloaded browser until it gets attached to a tab.
       browser.webProgress;
     }
 
     browser.loadURI(BROWSER_NEW_TAB_URL);
     browser.docShellIsActive = false;
-    browser.renderLayers = true;
     browser._urlbarFocused = true;
 
     // Make sure the preloaded browser is loaded with desired zoom level
     let tabURI = Services.io.newURI(BROWSER_NEW_TAB_URL);
     FullZoom.onLocationChange(tabURI, false, browser);
   },
 
   _createBrowser(aParams) {