--- a/mobile/android/chrome/content/browser.js
+++ b/mobile/android/chrome/content/browser.js
@@ -3897,17 +3897,19 @@ Tab.prototype = {
             this.browser.removeEventListener("click", ErrorPageEventHandler, true);
             this.browser.removeEventListener("pagehide", listener, true);
           }.bind(this);
 
           this.browser.addEventListener("pagehide", listener, true);
         }
 
         if (AppConstants.NIGHTLY_BUILD || AppConstants.MOZ_ANDROID_ACTIVITY_STREAM) {
-          WebsiteMetadata.parseAsynchronously(this.browser.contentDocument);
+          if (!docURI.startsWith("about:")) {
+            WebsiteMetadata.parseAsynchronously(this.browser.contentDocument);
+          }
         }
 
         break;
       }
 
       case "DOMFormHasPassword": {
         LoginManagerContent.onDOMFormHasPassword(aEvent,
                                                  this.browser.contentWindow);