diff --git a/src/interface/index.ts b/src/interface/index.ts
index 5003af7b..9e893eb7 100644
--- a/src/interface/index.ts
+++ b/src/interface/index.ts
@@ -1,7 +1,6 @@
 import "./index.css";
 import Settings from "./pages/settings.svelte";
 import IconFamily from "@/resources/fonts/IconFamily.woff";
-import browser from "webextension-polyfill";
 import { resolveExtensionAssetUrl } from "@/lib/extensionAssetUrl";
 import renderSvelte from "./main";
 import { initializeSettingsState } from "@/seqta/utils/listeners/SettingsState";
@@ -24,14 +23,18 @@ function InjectCustomIcons() {
 
 const mountPoint = document.getElementById("app");
 if (!mountPoint) {
-  console.error("Mount point #app not found");
-  throw new Error("Mount point #app not found");
-}
+  // In production, Rollup may put this entry in a shared chunk that content
+  // scripts load via `import("@/interface/main")`. Only the settings page
+  // has `#app` — never throw on SEQTA tabs.
+  verboseInfo(
+    "[BetterSEQTA+] Settings bootstrap skipped (no #app — not the settings page)",
+  );
+} else {
+  InjectCustomIcons();
 
-InjectCustomIcons();
-
-(async () => {
-  await initializeSettingsState();
-  initVerboseLogging();
-  renderSvelte(Settings, mountPoint, { standalone: true });
-})();
+  void (async () => {
+    await initializeSettingsState();
+    initVerboseLogging();
+    renderSvelte(Settings, mountPoint, { standalone: true });
+  })();
+}
\ No newline at end of file
diff --git a/vite.config.ts b/vite.config.ts
index 86a96d8c..3dd71519 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -147,6 +147,18 @@ export default defineConfig(({ command, mode: viteMode }) => {
       },
       output: {
         assetFileNames: "assets/[name]-[hash][extname]",
+        manualChunks(id) {
+          const normalized = id.replace(/\\/g, "/");
+          // Keep the Svelte mount helper out of the settings entry chunk so
+          // content-script `import("@/interface/main")` does not execute
+          // settings-page bootstrap (which requires #app).
+          if (
+            normalized.endsWith("/interface/main.ts") ||
+            normalized.endsWith("/interface/main.js")
+          ) {
+            return "interface-main";
+          }
+        },
       },
       onwarn(warning, warn) {
         if (warning.code === "FILE_NAME_CONFLICT") return;