diff --git a/addons/mass_mailing/views/mailing_templates_portal_layouts.xml b/addons/mass_mailing/views/mailing_templates_portal_layouts.xml
index ba652e5bfbc..c0659daafbf 100644
--- a/addons/mass_mailing/views/mailing_templates_portal_layouts.xml
+++ b/addons/mass_mailing/views/mailing_templates_portal_layouts.xml
@@ -26,7 +26,6 @@
                         <a target="_blank" class="label label-danger" href="https://www.odoo.com/app/website">Odoo</a>
                     </div>
                     <div class="float-start text-muted" itemscope="itemscope" itemtype="https://schema.org/Organization">
-                        <t t-call="web.debug_icon"/>
                         Copyright &amp;copy; <span t-field="res_company.name" itemprop="name">Company name</span>
                     </div>
                 </div>
diff --git a/addons/web/views/webclient_templates.xml b/addons/web/views/webclient_templates.xml
index 901d53e12de..44ac56ea092 100644
--- a/addons/web/views/webclient_templates.xml
+++ b/addons/web/views/webclient_templates.xml
@@ -66,7 +66,6 @@
                         <div class="container py-3">
                             <div class="row">
                                 <div class="col-sm text-center text-sm-start text-muted">
-                                    <t t-call="web.debug_icon"/>
                                     <span class="o_footer_copyright_name me-2">Copyright &amp;copy; <span t-field="res_company.name" itemprop="name">Company name</span></span>
                                 </div>
                                 <div class="col-sm text-center text-sm-end">
@@ -319,12 +318,4 @@
         </t>
     </template>
 
-    <template id="debug_icon" name="Debug Icon">
-        <t t-if="debug" t-nocache="The query strings and debug mode can change for the same page and the same rendering.">
-            <t t-set="debug_mode_help" t-value="' (%s)' % debug if debug != '1' else ''"/>
-            <a t-attf-href="?#{keep_query('*', debug='')}" t-attf-title="Debug mode is activated#{debug_mode_help}. Click here to exit debug mode."
-               class="o_debug_mode"><span class="fa fa-bug"/></a>
-        </t>
-    </template>
-
 </odoo>
diff --git a/addons/website/tests/test_page.py b/addons/website/tests/test_page.py
index 1ab59fb2ef4..041ed7c59fe 100644
--- a/addons/website/tests/test_page.py
+++ b/addons/website/tests/test_page.py
@@ -304,15 +304,6 @@ class WithContext(HttpCase):
         canonical_url = root_html.xpath('//link[@rel="canonical"]')[0].attrib['href']
         self.assertIn(canonical_url, [f"{website.domain}/", f"{website.domain}/page_1"])
 
-    def test_t_cache_footer_debug_link(self):
-        # Debug link (flag) should be use the current url.
-        self.url_open('/')
-        self.url_open('/contactus')
-        r = self.url_open('/?debug=1')
-        self.assertIn('<a class="o_debug_mode" href="?debug="', r.text)
-        r = self.url_open('/contactus?name=MyName')  # don't force debug here, already done on previous step
-        self.assertIn('<a class="o_debug_mode" href="?debug=&amp;name=MyName"', r.text)
-
     def test_07_alternatives(self):
         website = self.env.ref('website.default_website')
         lang_fr = self.env['res.lang']._activate_lang('fr_FR')