diff --git a/assets/vue/components/Breadcrumb.vue b/assets/vue/components/Breadcrumb.vue
index 4af93e71288..59e5d20fdba 100644
--- a/assets/vue/components/Breadcrumb.vue
+++ b/assets/vue/components/Breadcrumb.vue
@@ -28,7 +28,7 @@
 </template>
 
 <script setup>
-import { computed, ref, watch, watchEffect } from "vue"
+import { computed, ref, watch, watchEffect, onMounted } from "vue"
 import { useRoute, useRouter } from "vue-router"
 import { useI18n } from "vue-i18n"
 import Breadcrumb from "primevue/breadcrumb"
@@ -36,12 +36,12 @@ import { useCidReqStore } from "../store/cidReq"
 import { storeToRefs } from "pinia"
 import { useStore } from "vuex"
 
-const legacyItems = ref(window.breadcrumb)
+const legacyItems = ref([])
 
 const cidReqStore = useCidReqStore()
 const route = useRoute()
 const router = useRouter()
-const { t } = useI18n()
+const { t, te } = useI18n()
 
 const { course, session } = storeToRefs(cidReqStore)
 const store = useStore()
@@ -61,6 +61,13 @@ const specialRouteNames = [
 
 const itemList = ref([])
 
+onMounted(() => {
+  const wb = (window && window.breadcrumb) || []
+  if (Array.isArray(wb) && wb.length > 0) {
+    legacyItems.value = wb
+  }
+})
+
 const formatToolName = (name) => {
   if (!name) return ""
   return name
@@ -189,6 +196,35 @@ function addDocumentBreadcrumb() {
   }
 }
 
+/**
+ * Resolve translated label for /admin/settings/:namespace
+ */
+function resolveSettingsSectionLabel(nsRaw) {
+  const ns = String(nsRaw || "").trim()
+  // Safer because it's already translated server-side.
+  try {
+    const current = document.querySelector(".list-group a.bg-gray-25")
+    const domText = current?.textContent?.trim()
+    if (domText) {
+      return domText
+    }
+  } catch (e) {}
+
+  // i18n candidates
+  const candidates = [
+    `settings_section.${ns}`,
+    `settings_section.${ns.replace(/-/g, "_")}`,
+    ns,
+    ns.replace(/[-_]/g, " "),
+  ]
+  for (const key of candidates) {
+    const has = typeof te === "function" && te(key)
+    if (has) return t(key)
+  }
+
+  return ns.replace(/[-_]/g, " ").replace(/\b\w/g, (c) => c.toUpperCase())
+}
+
 // Watch route changes to dynamically rebuild the breadcrumb trail
 watchEffect(() => {
   if ("/" === route.fullPath) return
@@ -220,10 +256,10 @@ watchEffect(() => {
     const mainUrl = window.location.href
     const mainPath = mainUrl.indexOf("main/")
     legacyItems.value.forEach((item) => {
-      let newUrl = item.url.toString()
+      let newUrl = (item.url || "").toString()
       if (newUrl.indexOf("main/") > 0) newUrl = "/" + newUrl.substring(mainPath)
       if (newUrl === "/") newUrl = "#"
-      itemList.value.push({ label: item.name, url: newUrl })
+      itemList.value.push({ label: item.name, url: newUrl || undefined })
     })
     legacyItems.value = []
   } else if (course.value && route.name !== "CourseHome") {
@@ -268,7 +304,7 @@ watchEffect(() => {
     if (mainToolName === "ccalendarevent") {
       const cid = Number(route.query?.cid || 0)
       const gid = Number(route.query?.gid || 0)
-      toolLabel = gid > 0 ? "Group agenda" : (cid > 0 ? "Agenda" : "Personal agenda")
+      toolLabel = gid > 0 ? "Group agenda" : cid > 0 ? "Agenda" : "Personal agenda"
     }
     itemList.value.push({
       label: t(toolLabel),
@@ -300,10 +336,24 @@ watchResourceNodeLoader()
 function cleanIdParam(id) {
   if (!id) return undefined
   const match = id.toString().match(/(\d+)$/)
-  return match ? match[1] : id
+  return match ? id.toString().match(/(\d+)$/)[1] : id
 }
 
 function buildManualBreadcrumbIfNeeded() {
+  // If server already injected legacy breadcrumbs, use them.
+  if (Array.isArray(legacyItems.value) && legacyItems.value.length > 0) {
+    const mainUrl = window.location.href
+    const mainPath = mainUrl.indexOf("main/")
+    legacyItems.value.forEach((item) => {
+      let newUrl = (item.url || "").toString()
+      if (newUrl.indexOf("main/") > 0) newUrl = "/" + newUrl.substring(mainPath)
+      if (newUrl === "/") newUrl = "#"
+      itemList.value.push({ label: item.name, url: newUrl || undefined })
+    })
+    legacyItems.value = []
+    return true
+  }
+
   const whitelist = ["admin"]
   const overrides = {
     admin: "AdminIndex",
@@ -316,6 +366,24 @@ function buildManualBreadcrumbIfNeeded() {
     return false
   }
 
+  // /admin/settings/<namespace>
+  const isAdminSettings = pathSegments[1] === "settings"
+  if (isAdminSettings) {
+    const ns = pathSegments[2] || route.params?.namespace || route.query?.namespace || ""
+    const adminLabel = t("Admin")
+    itemList.value.push({
+      label: adminLabel,
+      route: { name: overrides.admin, params: route.params, query: route.query },
+    })
+    itemList.value.push({
+      label: t("Settings"),
+      route: { path: "/admin/settings" },
+    })
+    const section = resolveSettingsSectionLabel(ns)
+    itemList.value.push({ label: section })
+    return true
+  }
+
   const fullPath = "/" + pathSegments.join("/")
   const hasMatchedRoute = router.getRoutes().some((r) => r.path === fullPath)
 
diff --git a/src/CoreBundle/Resources/views/Admin/Settings/default.html.twig b/src/CoreBundle/Resources/views/Admin/Settings/default.html.twig
index 058c13401dc..cf699afce2b 100644
--- a/src/CoreBundle/Resources/views/Admin/Settings/default.html.twig
+++ b/src/CoreBundle/Resources/views/Admin/Settings/default.html.twig
@@ -205,3 +205,20 @@
       });
     </script>
 {% endblock %}
+{% block javascripts %}
+    {% set ns = app.request.get('namespace')|default('') %}
+    {% set sectionLabel =
+        (namespace_labels is defined and namespace_labels[ns] is defined)
+        ? namespace_labels[ns]
+        : (ns == 'cas' ? 'CAS' : (ns == 'lp' ? 'Learning path'|trans : (ns|capitalize)|trans))
+    %}
+    <script>
+      window.breadcrumb = [
+        { name: "{{ 'Admin'|trans|e('js') }}",    url: "/admin" },
+        { name: "{{ 'Settings'|trans|e('js') }}", url: "/admin/settings" },
+        { name: "{{ sectionLabel|e('js') }}" }
+      ];
+    </script>
+
+    {{ parent() }}
+{% endblock %}