diff --git a/addons/mail/static/src/models/chat_window_manager.js b/addons/mail/static/src/models/chat_window_manager.js
index 95df7f0c4da..01e20877da6 100644
--- a/addons/mail/static/src/models/chat_window_manager.js
+++ b/addons/mail/static/src/models/chat_window_manager.js
@@ -4,7 +4,7 @@ import { registerModel } from '@mail/model/model_core';
 import { attr, many, one } from '@mail/model/model_field';
 import { clear } from '@mail/model/model_field_command';
 
-const BASE_VISUAL = {
+export const BASE_VISUAL = {
     /**
      * @deprecated, should use ChatWindowManager/availableVisibleSlots instead
      * Amount of visible slots available for chat windows.
diff --git a/addons/website/__manifest__.py b/addons/website/__manifest__.py
index e6ccc3e4ed4..94ef19f740e 100644
--- a/addons/website/__manifest__.py
+++ b/addons/website/__manifest__.py
@@ -114,6 +114,9 @@
     'post_init_hook': 'post_init_hook',
     'uninstall_hook': 'uninstall_hook',
     'assets': {
+        'mail.assets_messaging': [
+            'website/static/src/models/*.js',
+        ],
         'web.assets_frontend': [
             ('replace', 'web/static/src/legacy/js/public/public_root_instance.js', 'website/static/src/js/content/website_root_instance.js'),
             'website/static/src/scss/website.scss',
diff --git a/addons/website/static/src/client_actions/website_preview/website_preview.js b/addons/website/static/src/client_actions/website_preview/website_preview.js
index 2329517533f..392bc1224b1 100644
--- a/addons/website/static/src/client_actions/website_preview/website_preview.js
+++ b/addons/website/static/src/client_actions/website_preview/website_preview.js
@@ -86,9 +86,15 @@ export class WebsitePreview extends Component {
             // OdooFrameContentLoaded event to unblock the iframe, as it is
             // triggered faster than the load event.
             this.iframe.el.addEventListener('OdooFrameContentLoaded', () => this.websiteService.unblockPreview('load-iframe'), { once: true });
+            this.env.services.messaging.modelManager.messagingCreatedPromise.then(() => {
+                this.env.services.messaging.modelManager.messaging.update({ isWebsitePreviewOpen: true });
+            });
         });
 
         onWillUnmount(() => {
+            this.env.services.messaging.modelManager.messagingCreatedPromise.then(() => {
+                this.env.services.messaging.modelManager.messaging.update({ isWebsitePreviewOpen: false });
+            });
             this.websiteService.currentWebsiteId = null;
             this.websiteService.websiteRootInstance = undefined;
             this.websiteService.pageDocument = null;
diff --git a/addons/website/static/src/components/editor/editor.scss b/addons/website/static/src/components/editor/editor.scss
index ac17e1f54c6..c1e83f6108b 100644
--- a/addons/website/static/src/components/editor/editor.scss
+++ b/addons/website/static/src/components/editor/editor.scss
@@ -2,9 +2,6 @@
     .o_notification_manager {
         @include o-position-absolute($top: map-get($spacers, 2), $right: calc(#{$o-we-sidebar-width} + 0.5rem));
     }
-    .o_ChatWindowManager {
-        display: none !important;
-    }
 }
 
 .ui-autocomplete.o_website_ui_autocomplete {
diff --git a/addons/website/static/src/models/chat_window_manager.js b/addons/website/static/src/models/chat_window_manager.js
new file mode 100644
index 00000000000..60055570894
--- /dev/null
+++ b/addons/website/static/src/models/chat_window_manager.js
@@ -0,0 +1,18 @@
+/** @odoo-module **/
+
+import { registerPatch } from '@mail/model/model_core';
+import { BASE_VISUAL } from '@mail/models/chat_window_manager';
+
+registerPatch({
+    name: 'ChatWindowManager',
+    fields: {
+        visual: {
+            compute() {
+                if (this.messaging.isWebsitePreviewOpen) {
+                    return JSON.parse(JSON.stringify(BASE_VISUAL));
+                }
+                return this._super();
+            },
+        },
+    },
+});
diff --git a/addons/website/static/src/models/messaging.js b/addons/website/static/src/models/messaging.js
new file mode 100644
index 00000000000..4e7328bbc15
--- /dev/null
+++ b/addons/website/static/src/models/messaging.js
@@ -0,0 +1,13 @@
+/** @odoo-module **/
+
+import { registerPatch } from '@mail/model/model_core';
+import { attr } from '@mail/model/model_field';
+
+registerPatch({
+    name: 'Messaging',
+    fields: {
+        isWebsitePreviewOpen: attr({
+            default: false,
+        }),
+    },
+});