--- a/browser/components/sessionstore/test/browser_526613.js
+++ b/browser/components/sessionstore/test/browser_526613.js
@@ -59,17 +59,17 @@ function test() {
   browserWindowsCount(1);
 
   // backup old state
   let oldState = ss.getBrowserState();
   // create a new state for testing
   let testState = {
     windows: [
       { tabs: [{ entries: [{ url: "http://example.com/" }] }], selected: 1 },
-      { tabs: [{ entries: [{ url: "about:robots"        }] }], selected: 1 },
+      { tabs: [{ entries: [{ url: "about:mozilla"       }] }], selected: 1 },
     ],
     // make sure the first window is focused, otherwise when restoring the
     // old state, the first window is closed and the test harness gets unloaded
     selectedWindow: 1
   };
 
   let pass = 1;
   function observer(aSubject, aTopic, aData) {