diff --git a/package.json b/package.json
index b0888ce..75cfbac 100644
--- a/package.json
+++ b/package.json
@@ -11,14 +11,12 @@
     "eslint-plugin-angular": "3.1.x",
     "jasmine-core": "2.8.x",
     "karma": "1.7.x",
-    "karma-chrome-launcher": "^2.2.0",
+    "karma-firefox-launcher": "2.1.0",
     "karma-cli": "1.0.x",
     "karma-coverage": "1.1.x",
     "karma-jasmine": "1.1.x",
     "karma-ng-html2js-preprocessor": "1.0.x",
-    "karma-phantomjs-launcher": "1.0.x",
-    "karma-threshold-reporter": "0.1.x",
-    "phantomjs-prebuilt": "2.1.x"
+    "karma-threshold-reporter": "0.1.x"
   },
   "scripts": {
     "postinstall": "if [ ! -d .tox ] || [ ! -d .tox/karma ]; then tox -ekarma --notest; fi",
diff --git a/zun_ui/karma.conf.js b/zun_ui/karma.conf.js
index 725d494..d49c278 100644
--- a/zun_ui/karma.conf.js
+++ b/zun_ui/karma.conf.js
@@ -125,20 +125,14 @@ module.exports = function (config) {
 
     frameworks: ['jasmine'],
 
-    browsers: ['PhantomJS'],
+    browsers: ['Firefox'],
 
     browserNoActivityTimeout: 60000,
 
-    phantomjsLauncher: {
-      // Have phantomjs exit if a ResourceError is encountered
-      // (useful if karma exits without killing phantom)
-      exitOnResourceError: true
-    },
-
     reporters: ['progress', 'coverage', 'threshold'],
 
     plugins: [
-      'karma-phantomjs-launcher',
+      'karma-firefox-launcher',
       'karma-jasmine',
       'karma-ng-html2js-preprocessor',
       'karma-coverage',
diff --git a/zun_ui/static/dashboard/container/capsules/actions/delete.service.js b/zun_ui/static/dashboard/container/capsules/actions/delete.service.js
index eb8f105..ee61533 100644
--- a/zun_ui/static/dashboard/container/capsules/actions/delete.service.js
+++ b/zun_ui/static/dashboard/container/capsules/actions/delete.service.js
@@ -105,10 +105,10 @@
 
     // for batch delete
     function afterCheck(result) {
-      var outcome = $q.reject();  // Reject the promise by default
+      var outcome = $q.reject().catch(angular.noop);  // Reject the promise by default
       if (result.fail.length > 0) {
         toast.add('error', getMessage(notAllowedMessage, result.fail));
-        outcome = $q.reject(result.fail);
+        outcome = $q.reject(result.fail).catch(angular.noop);
       }
       if (result.pass.length > 0) {
         outcome = deleteModal.open(scope, result.pass.map(getEntity), context).then(createResult);
diff --git a/zun_ui/static/dashboard/container/containers/actions/delete-force.service.js b/zun_ui/static/dashboard/container/containers/actions/delete-force.service.js
index 3139ad4..c662a3a 100644
--- a/zun_ui/static/dashboard/container/containers/actions/delete-force.service.js
+++ b/zun_ui/static/dashboard/container/containers/actions/delete-force.service.js
@@ -112,10 +112,10 @@
 
     // for batch delete
     function afterCheck(result) {
-      var outcome = $q.reject();  // Reject the promise by default
+      var outcome = $q.reject().catch(angular.noop);  // Reject the promise by default
       if (result.fail.length > 0) {
         toast.add('error', getMessage(notAllowedMessage, result.fail));
-        outcome = $q.reject(result.fail);
+        outcome = $q.reject(result.fail).catch(angular.noop);
       }
       if (result.pass.length > 0) {
         outcome = deleteModal.open(scope, result.pass.map(getEntity), context).then(createResult);
diff --git a/zun_ui/static/dashboard/container/containers/actions/delete-stop.service.js b/zun_ui/static/dashboard/container/containers/actions/delete-stop.service.js
index c2abeae..74b06fa 100644
--- a/zun_ui/static/dashboard/container/containers/actions/delete-stop.service.js
+++ b/zun_ui/static/dashboard/container/containers/actions/delete-stop.service.js
@@ -112,10 +112,10 @@
 
     // for batch delete
     function afterCheck(result) {
-      var outcome = $q.reject();  // Reject the promise by default
+      var outcome = $q.reject().catch(angular.noop);  // Reject the promise by default
       if (result.fail.length > 0) {
         toast.add('error', getMessage(notAllowedMessage, result.fail));
-        outcome = $q.reject(result.fail);
+        outcome = $q.reject(result.fail).catch(angular.noop);
       }
       if (result.pass.length > 0) {
         outcome = deleteModal.open(scope, result.pass.map(getEntity), context).then(createResult);
diff --git a/zun_ui/static/dashboard/container/containers/actions/delete.service.js b/zun_ui/static/dashboard/container/containers/actions/delete.service.js
index 19549af..8e91922 100644
--- a/zun_ui/static/dashboard/container/containers/actions/delete.service.js
+++ b/zun_ui/static/dashboard/container/containers/actions/delete.service.js
@@ -122,10 +122,10 @@
 
     // for batch delete
     function afterCheck(result) {
-      var outcome = $q.reject();  // Reject the promise by default
+      var outcome = $q.reject().catch(angular.noop);  // Reject the promise by default
       if (result.fail.length > 0) {
         toast.add('error', getMessage(notAllowedMessage, result.fail));
-        outcome = $q.reject(result.fail);
+        outcome = $q.reject(result.fail).catch(angular.noop);
       }
       if (result.pass.length > 0) {
         outcome = deleteModal.open(scope, result.pass.map(getEntity), context).then(createResult);
diff --git a/zun_ui/static/dashboard/container/images/actions/delete.service.js b/zun_ui/static/dashboard/container/images/actions/delete.service.js
index 7dee270..6dc807d 100644
--- a/zun_ui/static/dashboard/container/images/actions/delete.service.js
+++ b/zun_ui/static/dashboard/container/images/actions/delete.service.js
@@ -103,10 +103,10 @@
 
     // for batch delete
     function afterCheck(result) {
-      var outcome = $q.reject();  // Reject the promise by default
+      var outcome = $q.reject().catch(angular.noop);  // Reject the promise by default
       if (result.fail.length > 0) {
         toast.add('error', getMessage(notAllowedMessage, result.fail));
-        outcome = $q.reject(result.fail);
+        outcome = $q.reject(result.fail).catch(angular.noop);
       }
       if (result.pass.length > 0) {
         outcome = deleteModal.open(scope, result.pass.map(getEntity), context).then(createResult);
diff --git a/zun_ui/static/dashboard/container/zun.service.js b/zun_ui/static/dashboard/container/zun.service.js
index 624da50..f062b83 100644
--- a/zun_ui/static/dashboard/container/zun.service.js
+++ b/zun_ui/static/dashboard/container/zun.service.js
@@ -83,7 +83,7 @@
 
     function getContainer(id, suppressError) {
       var promise = apiService.get(containersPath + id);
-      return suppressError ? promise : promise.error(function() {
+      return suppressError ? promise : promise.catch(function onError() {
         var msg = gettext('Unable to retrieve the Container.');
         toastService.add('error', msg);
       });
@@ -96,7 +96,7 @@
 
     function deleteContainer(id, suppressError) {
       var promise = apiService.delete(containersPath, [id]);
-      return suppressError ? promise : promise.error(function() {
+      return suppressError ? promise : promise.catch(function onError() {
         var msg = gettext('Unable to delete the Container with id: %(id)s');
         toastService.add('error', interpolate(msg, { id: id }, true));
       });
@@ -110,7 +110,7 @@
 
     function deleteContainerForce(id, suppressError) {
       var promise = apiService.delete(containersPath + id + '/force', [id]);
-      return suppressError ? promise : promise.error(function() {
+      return suppressError ? promise : promise.catch(function onError() {
         var msg = gettext('Unable to delete forcely the Container with id: %(id)s');
         toastService.add('error', interpolate(msg, { id: id }, true));
       });
@@ -118,7 +118,7 @@
 
     function deleteContainerStop(id, suppressError) {
       var promise = apiService.delete(containersPath + id + '/stop', [id]);
-      return suppressError ? promise : promise.error(function() {
+      return suppressError ? promise : promise.catch(function onError() {
         var msg = gettext('Unable to stop and delete the Container with id: %(id)s');
         toastService.add('error', interpolate(msg, { id: id }, true));
       });
@@ -225,7 +225,7 @@
 
     function deleteCapsule(id, suppressError) {
       var promise = apiService.delete(capsulesPath, [id]);
-      return suppressError ? promise : promise.error(function() {
+      return suppressError ? promise : promise.catch(function onError() {
         var msg = gettext('Unable to delete the Capsule with id: %(id)s');
         toastService.add('error', interpolate(msg, { id: id }, true));
       });
@@ -247,7 +247,7 @@
 
     function deleteImage(id, suppressError) {
       var promise = apiService.delete(imagesPath, [id]);
-      return suppressError ? promise : promise.error(function() {
+      return suppressError ? promise : promise.catch(function onError() {
         var msg = gettext('Unable to delete the Image with id: %(id)s');
         toastService.add('error', interpolate(msg, { id: id }, true));
       });