diff --git a/browser/devtools/webconsole/test/browser_webconsole_bug_585991_autocomplete_keys.js b/browser/devtools/webconsole/test/browser_webconsole_bug_585991_autocomplete_keys.js
index 6d53ca35275e..56a3eb7dfb28 100644
--- a/browser/devtools/webconsole/test/browser_webconsole_bug_585991_autocomplete_keys.js
+++ b/browser/devtools/webconsole/test/browser_webconsole_bug_585991_autocomplete_keys.js
@@ -194,8 +194,12 @@ function testReturnKey()
 
       ok(!popup.isOpen, "popup is not open after VK_RETURN");
 
-      is(inputNode.value, "window.foobarBug585991.valueOf",
-         "completion was successful after VK_RETURN");
+      // modified by bug 873250
+      is(inputNode.value, "", "no completion after VK_RETURN");
+      isnot(jsterm.lastInputValue, "window.foobarBug585991.valueOf",
+        "lastInputValue is not window.foobarBug585991.valueOf");
+      EventUtils.synthesizeKey("VK_UP", {});
+      is(inputNode.value, jsterm.lastInputValue, "previous entry was lastInputNode")
 
       ok(!completeNode.value, "completeNode is empty");
 
diff --git a/browser/devtools/webconsole/webconsole.js b/browser/devtools/webconsole/webconsole.js
index a1fc1923ff66..291d8531d166 100644
--- a/browser/devtools/webconsole/webconsole.js
+++ b/browser/devtools/webconsole/webconsole.js
@@ -3949,13 +3949,9 @@ JSTerm.prototype = {
         }
         break;
 
+      // Bug 873250 - always enter, ignore autocomplete
       case Ci.nsIDOMKeyEvent.DOM_VK_RETURN:
-        if (this.autocompletePopup.isOpen && this.autocompletePopup.selectedIndex > -1) {
-          this.acceptProposedCompletion();
-        }
-        else {
-          this.execute();
-        }
+        this.execute();
         aEvent.preventDefault();
         break;