diff --git a/app/src/asset/pdf/app.js b/app/src/asset/pdf/app.js
index 09711f674..f07d7a125 100644
--- a/app/src/asset/pdf/app.js
+++ b/app/src/asset/pdf/app.js
@@ -2757,7 +2757,7 @@ function webViewerUpdateFindControlState ({
                                             rawQuery,
                                             source,
                                           }) {
-  const pdfInstance = getPdfInstance(source.state.source.bar)
+  const pdfInstance = getPdfInstance(source._linkService.pdfViewer.container)
   if (!pdfInstance) {
     return
   }
diff --git a/app/src/config/index.ts b/app/src/config/index.ts
index 32f9ded93..1efdb98d5 100644
--- a/app/src/config/index.ts
+++ b/app/src/config/index.ts
@@ -57,7 +57,7 @@ export const openSetting = () => {
     });
 
     initConfigSearch(dialog.element);
-
+    (dialog.element.querySelector(".b3-dialog__container") as HTMLElement).style.maxWidth = "1280px";
     dialog.element.querySelectorAll(".b3-tab-bar .b3-list-item").forEach(item => {
         item.addEventListener("click", () => {
             const type = item.getAttribute("data-name");