diff --git a/app/assets/javascripts/admin/addon/controllers/admin-plugins.js b/app/assets/javascripts/admin/addon/controllers/admin-plugins.js
index be663cadb15..34ffe45783d 100644
--- a/app/assets/javascripts/admin/addon/controllers/admin-plugins.js
+++ b/app/assets/javascripts/admin/addon/controllers/admin-plugins.js
@@ -1,17 +1,27 @@
 import { action } from "@ember/object";
 import Controller from "@ember/controller";
-import discourseComputed from "discourse-common/utils/decorators";
+import { inject as service } from "@ember/service";
 
 export default Controller.extend({
-  @discourseComputed
-  adminRoutes() {
+  router: service(),
+
+  get adminRoutes() {
+    return this.allAdminRoutes.filter((r) => this.routeExists(r.full_location));
+  },
+
+  get brokenAdminRoutes() {
+    return this.allAdminRoutes.filter(
+      (r) => !this.routeExists(r.full_location)
+    );
+  },
+
+  get allAdminRoutes() {
     return this.model
+      .filter((p) => p?.enabled)
       .map((p) => {
-        if (p.get("enabled")) {
-          return p.admin_route;
-        }
+        return p.admin_route;
       })
-      .compact();
+      .filter(Boolean);
   },
 
   @action
@@ -21,4 +31,13 @@ export default Controller.extend({
       adminDetail.classList.toggle(state);
     });
   },
+
+  routeExists(routeName) {
+    try {
+      this.router.urlFor(routeName);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  },
 });
diff --git a/app/assets/javascripts/admin/addon/templates/plugins.hbs b/app/assets/javascripts/admin/addon/templates/plugins.hbs
index 1425cf479ef..1baaaddd2d7 100644
--- a/app/assets/javascripts/admin/addon/templates/plugins.hbs
+++ b/app/assets/javascripts/admin/addon/templates/plugins.hbs
@@ -19,5 +19,11 @@
 </div>
 
 <div class="admin-detail pull-left mobile-closed">
+  {{#each this.brokenAdminRoutes as |route|}}
+    <div class="alert alert-error">
+      {{i18n "admin.plugins.broken_route" name=(i18n route.label)}}
+    </div>
+  {{/each}}
+
   {{outlet}}
 </div>
diff --git a/app/assets/javascripts/discourse/tests/acceptance/admin-plugins-test.js b/app/assets/javascripts/discourse/tests/acceptance/admin-plugins-test.js
new file mode 100644
index 00000000000..61ca9fafc3c
--- /dev/null
+++ b/app/assets/javascripts/discourse/tests/acceptance/admin-plugins-test.js
@@ -0,0 +1,51 @@
+import {
+  acceptance,
+  exists,
+  query,
+} from "discourse/tests/helpers/qunit-helpers";
+import { visit } from "@ember/test-helpers";
+import { test } from "qunit";
+
+acceptance("Admin - Plugins", function (needs) {
+  needs.user();
+
+  needs.pretender((server, helper) => {
+    server.get("/admin/plugins", () =>
+      helper.response({
+        plugins: [
+          {
+            id: "some-test-plugin",
+            name: "some-test-plugin",
+            about: "Plugin description",
+            version: "0.1",
+            url: "https://example.com",
+            admin_route: {
+              location: "testlocation",
+              label: "test.plugin.label",
+              full_location: "adminPlugins.testlocation",
+            },
+            enabled: true,
+            enabled_setting: "testplugin_enabled",
+            has_settings: true,
+            is_official: true,
+          },
+        ],
+      })
+    );
+  });
+
+  test("shows plugin list", async function (assert) {
+    await visit("/admin/plugins");
+    const table = query("table.admin-plugins");
+    assert.strictEqual(
+      table.querySelector("tr .plugin-name .name").innerText,
+      "some-test-plugin",
+      "displays the plugin in the table"
+    );
+
+    assert.true(
+      exists(".admin-plugins .admin-detail .alert-error"),
+      "displays an error for unknown routes"
+    );
+  });
+});
diff --git a/app/assets/stylesheets/testem.scss b/app/assets/stylesheets/testem.scss
index cb117a88252..a1e4c5dad37 100644
--- a/app/assets/stylesheets/testem.scss
+++ b/app/assets/stylesheets/testem.scss
@@ -19,6 +19,7 @@ $love: #fa6c8d !default;
 @import "common/foundation/mixins";
 @import "desktop";
 @import "color_definitions";
+@import "admin";
 
 #ember-testing-container {
   box-sizing: border-box;
diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index fb29c37f874..0cc78869985 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -4639,6 +4639,7 @@ en:
         change_settings_short: "Settings"
         howto: "How do I install plugins?"
         official: "Official Plugin"
+        broken_route: "Unable to configure link to '%{name}'. Ensure ad-blockers are disabled and try reloading the page."
 
       backups:
         title: "Backups"