diff --git a/src/content/components/extension/FullscreenViewer.ts b/src/content/components/extension/FullscreenViewer.ts
index 5c7eb3e..4169e3f 100644
--- a/src/content/components/extension/FullscreenViewer.ts
+++ b/src/content/components/extension/FullscreenViewer.ts
@@ -412,7 +412,7 @@ export class FullscreenViewer extends BaseComponent {
   }
 
   #togglePopupVisibility(maybeState: boolean | undefined = undefined) {
-    if (typeof maybeState === 'undefined') {
+    if (maybeState === undefined) {
       const isHidden = this.#tagsPopupElement.classList.toggle(FullscreenViewer.#collapsedPopupState);
       void FullscreenViewer.#preferences.fullscreenViewerPopupShown.set(!isHidden);
       return;
diff --git a/src/content/deps/amd.ts b/src/content/deps/amd.ts
index 1ced3ee..f3e7824 100644
--- a/src/content/deps/amd.ts
+++ b/src/content/deps/amd.ts
@@ -38,7 +38,7 @@ amdLite.define = (name, dependencies, originalCallback) => {
 
     // Workaround for the entry script not returning anything causing AMD-Lite to send warning about modules not
     // being loaded/not existing.
-    return typeof callbackResult !== 'undefined' ? callbackResult : {};
+    return callbackResult !== undefined ? callbackResult : {};
   });
 
   // Schedule the auto run on the next available frame. Firefox and Chromium have a lot of differences in how they