--- a/browser/components/urlbar/tests/unit/head.js
+++ b/browser/components/urlbar/tests/unit/head.js
@@ -82,17 +82,17 @@ function promiseControllerNotification(c
 
 /**
  * A basic test provider, returning all the provided matches.
  */
 class TestProvider extends UrlbarProvider {
   constructor(matches, cancelCallback) {
     super();
     this._name = "TestProvider" + Math.floor(Math.random() * 100000);
-    this._cancel = cancelCallback;
+    this._cancelCallback = cancelCallback;
     this._matches = matches;
   }
   get name() {
     return this._name;
   }
   get type() {
     return UrlbarUtils.PROVIDER_TYPE.PROFILE;
   }

--- a/browser/components/urlbar/tests/unit/test_UrlbarController_integration.js
+++ b/browser/components/urlbar/tests/unit/test_UrlbarController_integration.js
@@ -56,28 +56,28 @@ add_task(async function test_basic_searc
 
   params = await resultsPromise;
 
   Assert.deepEqual(params[0].results, [match],
     "Should have the expected match");
 });
 
 add_task(async function test_cancel_search() {
-  let providerCanceledPromise = PromiseUtils.defer();
-  let providerName = registerBasicTestProvider([match], providerCanceledPromise.resolve);
+  let providerCanceledDeferred = PromiseUtils.defer();
+  let providerName = registerBasicTestProvider([match], providerCanceledDeferred.resolve);
   const context = createContext(TEST_URL, {providers: [providerName]});
 
   let startedPromise = promiseControllerNotification(controller, "onQueryStarted");
-  let cancelPromise = promiseControllerNotification(controller, "onQueryResults");
+  let cancelPromise = promiseControllerNotification(controller, "onQueryCancelled");
 
   await controller.startQuery(context);
 
   let params = await startedPromise;
 
   controller.cancelQuery(context);
 
   Assert.equal(params[0], context);
 
   info("Should tell the provider the query is canceled");
-  await providerCanceledPromise;
+  await providerCanceledDeferred.promise;
 
   params = await cancelPromise;
 });