diff --git a/bitbake/lib/toaster/toastergui/static/css/default.css b/bitbake/lib/toaster/toastergui/static/css/default.css
index 3a0fbb82c8..0961c97747 100644
--- a/bitbake/lib/toaster/toastergui/static/css/default.css
+++ b/bitbake/lib/toaster/toastergui/static/css/default.css
@@ -250,6 +250,18 @@ code { color: #333; background-color: transparent; }
 /* Style the special no results message in the custom image details page */
 [id^="no-results-special-"] > .alert-warning > ol { margin-top: 10px; }
 
+/* style the loading spinner in the new custom image dialog */
+#create-new-custom-image-btn [data-role="loading-state"] {
+  padding-left: 16px;
+}
+
+/* icon has to be absolutely positioned, otherwise the spin animation doesn't work */
+#create-new-custom-image-btn [data-role="loading-state"] .icon-spinner {
+  position: absolute;
+  left: 26px;
+  bottom: 26px;
+}
+
 /* Style the content of modal dialogs */
 .modal-footer { text-align: left; }
 .date-filter-controls { margin-top: 10px; }
diff --git a/bitbake/lib/toaster/toastergui/static/js/libtoaster.js b/bitbake/lib/toaster/toastergui/static/js/libtoaster.js
index a61b10e972..f56affd8ea 100644
--- a/bitbake/lib/toaster/toastergui/static/js/libtoaster.js
+++ b/bitbake/lib/toaster/toastergui/static/js/libtoaster.js
@@ -436,8 +436,23 @@ var libtoaster = (function () {
      });
   }
 
+  // if true, the loading spinner for Ajax requests will be displayed
+  // if requests take more than 1200ms
+  var ajaxLoadingTimerEnabled = true;
+
+  // turn on the page-level loading spinner for Ajax requests
+  function _enableAjaxLoadingTimer() {
+    ajaxLoadingTimerEnabled = true;
+  }
+
+  // turn off the page-level loading spinner for Ajax requests
+  function _disableAjaxLoadingTimer() {
+    ajaxLoadingTimerEnabled = false;
+  }
 
   return {
+    enableAjaxLoadingTimer: _enableAjaxLoadingTimer,
+    disableAjaxLoadingTimer: _disableAjaxLoadingTimer,
     reload_params : reload_params,
     startABuild : _startABuild,
     cancelABuild : _cancelABuild,
@@ -485,7 +500,6 @@ function reload_params(params) {
     window.location.href = url+"?"+callparams.join('&');
 }
 
-
 /* Things that happen for all pages */
 $(document).ready(function() {
 
@@ -644,7 +658,9 @@ $(document).ready(function() {
         window.clearTimeout(ajaxLoadingTimer);
 
       ajaxLoadingTimer = window.setTimeout(function() {
-        $("#loading-notification").fadeIn();
+        if (libtoaster.ajaxLoadingTimerEnabled) {
+          $("#loading-notification").fadeIn();
+        }
       }, 1200);
     });
 
diff --git a/bitbake/lib/toaster/toastergui/static/js/newcustomimage_modal.js b/bitbake/lib/toaster/toastergui/static/js/newcustomimage_modal.js
index 8356c02b5a..dace8e3258 100644
--- a/bitbake/lib/toaster/toastergui/static/js/newcustomimage_modal.js
+++ b/bitbake/lib/toaster/toastergui/static/js/newcustomimage_modal.js
@@ -25,7 +25,11 @@ function newCustomImageModalInit(){
   var duplicateNameMsg = "An image with this name already exists. Image names must be unique.";
   var duplicateImageInProjectMsg = "An image with this name already exists in this project."
   var invalidBaseRecipeIdMsg = "Please select an image to customise.";
-	
+
+  // set button to "submit" state and enable text entry so user can
+  // enter the custom recipe name
+  showSubmitState();
+
   /* capture clicks on radio buttons inside the modal; when one is selected,
    * set the recipe on the modal
    */
@@ -40,6 +44,9 @@ function newCustomImageModalInit(){
   });
 
   newCustomImgBtn.click(function(e){
+    // disable the button and text entry
+    showLoadingState();
+
     e.preventDefault();
 
     var baseRecipeId = imgCustomModal.data('recipe');
@@ -69,12 +76,33 @@ function newCustomImageModalInit(){
           }
         } else {
           imgCustomModal.modal('hide');
+          imgCustomModal.one('hidden.bs.modal', showSubmitState);
           window.location.replace(ret.url + '?notify=new');
         }
       });
     }
   });
 
+  // enable text entry, show "Create image" button text
+  function showSubmitState() {
+    libtoaster.enableAjaxLoadingTimer();
+    newCustomImgBtn.find('[data-role="loading-state"]').hide();
+    newCustomImgBtn.find('[data-role="submit-state"]').show();
+    newCustomImgBtn.removeAttr('disabled');
+    nameInput.removeAttr('disabled');
+  }
+
+  // disable text entry, show "Creating image..." button text;
+  // we also disabled the page-level ajax loading spinner while this spinner
+  // is active
+  function showLoadingState() {
+    libtoaster.disableAjaxLoadingTimer();
+    newCustomImgBtn.find('[data-role="submit-state"]').hide();
+    newCustomImgBtn.find('[data-role="loading-state"]').show();
+    newCustomImgBtn.attr('disabled', 'disabled');
+    nameInput.attr('disabled', 'disabled');
+  }
+
   function showNameError(text){
     invalidNameHelp.text(text);
     invalidNameHelp.show();
@@ -167,6 +195,5 @@ function newCustomImageModalSetRecipes(baseRecipes) {
 
     // show the radio button container
     imageSelector.show();
-	 
-  }	
+  }
 }
diff --git a/bitbake/lib/toaster/toastergui/templates/newcustomimage_modal.html b/bitbake/lib/toaster/toastergui/templates/newcustomimage_modal.html
index 5caa68392c..d448d3afc1 100644
--- a/bitbake/lib/toaster/toastergui/templates/newcustomimage_modal.html
+++ b/bitbake/lib/toaster/toastergui/templates/newcustomimage_modal.html
@@ -48,7 +48,12 @@
       </div>
 
       <div class="modal-footer">
-        <button id="create-new-custom-image-btn" class="btn btn-primary btn-lg" data-original-title="" title="" disabled>Create custom image</button>
+        <button id="create-new-custom-image-btn" class="btn btn-primary btn-large" disabled>
+          <span data-role="submit-state">Create custom image</span>
+          <span data-role="loading-state" style="display:none">
+            <i class="fa-pulse icon-spinner"></i>&nbsp;Creating custom image...
+          </span>
+        </button>
       </div>
     </div>
   </div>