diff --git a/static/manifest-gui.css b/static/manifest-gui.css
index 9f60420..1f88ee5 100644
--- a/static/manifest-gui.css
+++ b/static/manifest-gui.css
@@ -261,6 +261,14 @@ button#reset-to-default:active::before {
   content: "♻️♻️♻️♻️♻️";
 }
 
+button#remove.disabled {
+  background-color: #303030;
+  color: #808080;
+  cursor: not-allowed;
+  opacity: 0.5;
+  pointer-events: none;
+}
+
 button#remove::before {
   content: "−";
 }
diff --git a/static/scripts/rendering/config-editor.ts b/static/scripts/rendering/config-editor.ts
index 9b85b49..1561070 100644
--- a/static/scripts/rendering/config-editor.ts
+++ b/static/scripts/rendering/config-editor.ts
@@ -47,15 +47,23 @@ export function renderConfigEditor(renderer: ManifestRenderer, pluginManifest: M
     });
   }
 
-  const add = document.getElementById("add");
-  const remove = document.getElementById("remove");
+  const add = document.getElementById("add") as HTMLButtonElement;
+  const remove = document.getElementById("remove") as HTMLButtonElement;
   if (!add || !remove) {
     throw new Error("Add or remove button not found");
   }
   add.addEventListener("click", writeNewConfig.bind(null, renderer, "add"));
-  remove.addEventListener("click", () => writeNewConfig.bind(null, renderer, "remove"));
 
-  const resetToDefaultButton = document.getElementById("reset-to-default");
+  if (plugin) {
+    remove.disabled = false;
+    remove.classList.remove("disabled");
+    remove.addEventListener("click", () => writeNewConfig.bind(null, renderer, "remove"));
+  } else {
+    remove.disabled = true;
+    remove.classList.add("disabled");
+  }
+
+  const resetToDefaultButton = document.getElementById("reset-to-default") as HTMLButtonElement;
   if (!resetToDefaultButton) {
     throw new Error("Reset to default button not found");
   }