1 files changed, 1 insertions, 1 deletions
diff --git a/browser/extensions/pictureinpicture/video-wrappers/videojsWrapper.js b/browser/extensions/pictureinpicture/video-wrappers/videojsWrapper.js
index ca3145af4a..2e94c58f4e 100644
--- a/browser/extensions/pictureinpicture/video-wrappers/videojsWrapper.js
+++ b/browser/extensions/pictureinpicture/video-wrappers/videojsWrapper.js
@@ -11,7 +11,7 @@ class PictureInPictureVideoWrapper {
 
     if (container) {
       updateCaptionsFunction("");
-      const callback = function (mutationsList, observer) {
+      const callback = function () {
         let text = container.querySelector("div").innerText;
         if (!text) {
           updateCaptionsFunction("");