1 files changed, 1 insertions, 1 deletions
diff --git a/toolkit/components/pdfjs/content/PdfjsParent.sys.mjs b/toolkit/components/pdfjs/content/PdfjsParent.sys.mjs
index a11d68ef02..32bb3d65b7 100644
--- a/toolkit/components/pdfjs/content/PdfjsParent.sys.mjs
+++ b/toolkit/components/pdfjs/content/PdfjsParent.sys.mjs
@@ -187,7 +187,7 @@ export class PdfjsParent extends JSWindowActorParent {
       let newBrowser = aEvent.detail;
       newBrowser.addEventListener(
         "EndSwapDocShells",
-        evt => {
+        () => {
           this._hookupEventListeners(newBrowser);
         },
         { once: true }