Bug 658738 - Don't leak test-console.html in browser_webconsole_bug_580001_closing_after_completion.js

toolkit/components/console/hudservice/tests/browser/browser_webconsole_bug_580001_closing_after_completion.js

@@ -61,7 +61,6 @@ function testClosingAfterCompletion() {
 
   let errorWhileClosing = false;
   function errorListener(evt) {
-    browser.removeEventListener("error", errorListener, false);
     errorWhileClosing = true;
   }
 
@@ -74,6 +73,7 @@ function testClosingAfterCompletion() {
   // We can't test for errors right away, because the error occures after a
   // setTimeout(..., 0) in the WebConsole code.
   executeSoon(function() {
+    browser.removeEventListener("error", errorListener, false);
     is(errorWhileClosing, false, "no error while closing the WebConsole");
     finishTest();
   });