diff --git a/test/integration/reorganize_pages_spec.mjs b/test/integration/reorganize_pages_spec.mjs
index 0591fdce3..4ff59fe3a 100644
--- a/test/integration/reorganize_pages_spec.mjs
+++ b/test/integration/reorganize_pages_spec.mjs
@@ -1112,6 +1112,76 @@ describe("Reorganize Pages View", () => {
     });
   });
 
+  describe("Focus stays in sidebar after page operations (bug 2020731)", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait(
+        "page_with_number.pdf",
+        "#viewsManagerToggleButton",
+        "1",
+        null,
+        { enableSplitMerge: true }
+      );
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("should keep focus on a thumbnail after deleting pages", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await waitForThumbnailVisible(page, 1);
+          await waitAndClick(
+            page,
+            `.thumbnail:has(${getThumbnailSelector(1)}) input`
+          );
+
+          const handlePagesEdited = await waitForPagesEdited(page);
+          await waitAndClick(page, "#viewsManagerStatusActionButton");
+          await waitAndClick(page, "#viewsManagerStatusActionDelete");
+          await awaitPromise(handlePagesEdited);
+
+          await page.waitForSelector(
+            "#thumbnailsView .thumbnailImageContainer:focus",
+            {
+              visible: true,
+            }
+          );
+        })
+      );
+    });
+
+    it("should keep focus on a thumbnail after pasting pages", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await waitForThumbnailVisible(page, 1);
+          await waitAndClick(
+            page,
+            `.thumbnail:has(${getThumbnailSelector(1)}) input`
+          );
+
+          let handlePagesEdited = await waitForPagesEdited(page, "cut");
+          await waitAndClick(page, "#viewsManagerStatusActionButton");
+          await waitAndClick(page, "#viewsManagerStatusActionCut");
+          await awaitPromise(handlePagesEdited);
+
+          handlePagesEdited = await waitForPagesEdited(page);
+          await waitAndClick(page, `${getThumbnailSelector(1)}+button`);
+          await awaitPromise(handlePagesEdited);
+
+          await page.waitForSelector(
+            "#thumbnailsView .thumbnailImageContainer:focus",
+            {
+              visible: true,
+            }
+          );
+        })
+      );
+    });
+  });
+
   describe("Extract some pages from a pdf", () => {
     let pages;
 
diff --git a/web/pdf_thumbnail_viewer.js b/web/pdf_thumbnail_viewer.js
index 252d4fa92..12e83934f 100644
--- a/web/pdf_thumbnail_viewer.js
+++ b/web/pdf_thumbnail_viewer.js
@@ -125,6 +125,8 @@ class PDFThumbnailViewer {
 
   #copiedPageNumbers = null;
 
+  #boundPastePages = this.#pastePages.bind(this);
+
   #isCut = false;
 
   #isOneColumnView = false;
@@ -252,6 +254,15 @@ class PDFThumbnailViewer {
     });
   }
 
+  #resetCurrentThumbnail(newPageNumber) {
+    if (!this.pdfDocument) {
+      return;
+    }
+    const thumbnailView = this._thumbnails[this._currentPageNumber - 1];
+    thumbnailView?.toggleCurrent(/* isCurrent = */ false);
+    this._currentPageNumber = newPageNumber;
+  }
+
   scrollThumbnailIntoView(pageNumber) {
     if (!this.pdfDocument) {
       return;
@@ -263,10 +274,8 @@ class PDFThumbnailViewer {
       return;
     }
     if (pageNumber !== this._currentPageNumber) {
-      const prevThumbnailView = this._thumbnails[this._currentPageNumber - 1];
-      prevThumbnailView?.toggleCurrent(/* isCurrent = */ false);
+      this.#resetCurrentThumbnail(pageNumber);
       thumbnailView.toggleCurrent(/* isCurrent = */ true);
-      this._currentPageNumber = pageNumber;
     }
     const { first, last, views } = this.#getVisibleThumbs();
 
@@ -640,10 +649,7 @@ class PDFThumbnailViewer {
         type: "move",
       });
 
-      setTimeout(() => {
-        this.forceRendering();
-        this.linkService.goToPage(currentPageNumber);
-      }, 0);
+      this.#updateCurrentPage(currentPageNumber);
     }
 
     if (!isNaN(this.#pageNumberToRemove)) {
@@ -659,6 +665,17 @@ class PDFThumbnailViewer {
     this.#selectedPages.clear();
   }
 
+  #updateCurrentPage(currentPageNumber) {
+    setTimeout(() => {
+      this.#resetCurrentThumbnail(0);
+      this.forceRendering();
+      const newPageNumber = currentPageNumber || 1;
+      this.linkService.goToPage(newPageNumber);
+      const thumbnailView = this._thumbnails[newPageNumber - 1];
+      thumbnailView.imageContainer.focus();
+    }, 0);
+  }
+
   #saveExtractedPages() {
     this.eventBus.dispatch("saveextractedpages", {
       source: this,
@@ -688,7 +705,7 @@ class PDFThumbnailViewer {
       this.#clearSelection();
     }
     for (const thumbnail of this._thumbnails) {
-      thumbnail.addPasteButton(this.#pastePages.bind(this));
+      thumbnail.addPasteButton(this.#boundPastePages);
     }
     this.container.classList.add("pasteMode");
     this.#toggleMenuEntries(false);
@@ -728,10 +745,7 @@ class PDFThumbnailViewer {
     this.#isCut = false;
     this.#updateMenuEntries();
 
-    setTimeout(() => {
-      this.forceRendering();
-      this.linkService.goToPage(currentPageNumber || 1);
-    }, 0);
+    this.#updateCurrentPage(currentPageNumber);
   }
 
   #deletePages(type = "delete") {
@@ -757,10 +771,7 @@ class PDFThumbnailViewer {
       type,
     });
 
-    setTimeout(() => {
-      this.forceRendering();
-      this.linkService.goToPage(currentPageNumber || 1);
-    }, 0);
+    this.#updateCurrentPage(currentPageNumber);
   }
 
   #updateMenuEntries() {